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IPplan - IP address management and tracking
Revision History
Revision 4.81 2007-01-23 Revised by: re
Revision 2.91 2002-05-17 Revised by: re
IPplan is a free (GPL), web based, multilingual, IP address management and
tracking tool written in [1]php 4, simplifying the administration of your IP
address space. IPplan goes beyond IP address management including DNS
administration, configuration file management, circuit management
(customizable via templates) and storing of hardware information
(customizable via templates). IPplan can handle a single network or cater
for multiple networks and customers with overlapping address space. See the
introduction section for more.
_________________________________________________________________
Table of Contents
1. [2]Introduction
1.1. [3]Copyright Information
1.2. [4]Disclaimer
1.3. [5]New Versions
1.4. [6]Credits
1.5. [7]Feedback
1.6. [8]Translations
2. [9]Requirements
2.1. [10]Databases
2.2. [11]Additional features
3. [12]Installation
3.1. [13]Customization
4. [14]Downloads, bugs and forums
4.1. [15]Screenshots
5. [16]Mode of operation
5.1. [17]Services company
5.2. [18]ISP
6. [19]Concepts
6.1. [20]Deployment strategy
6.2. [21]Linking addresses
7. [22]Administration
7.1. [23]Admin user
7.2. [24]Customer access
7.3. [25]Subnet access
7.4. [26]Group authority boundaries
8. [27]Circuit administration, host configuration data and asset information
9. [28]Device configuration file management
10. [29]DNS administration
10.1. [30]Handling exported zones
10.2. [31]Automatic updating of zone records
11. [32]Dealing with registrars
12. [33]Searching
12.1. [34]Searching for individual address details
12.2. [35]Searching areas and ranges
13. [36]Config file
14. [37]Importing data
14.1. [38]TAB delimited data
14.2. [39]Importing using NMAP
15. [40]Templates
15.1. [41]Customer, Subnet, DNS and IP address templates
15.2. [42]Registrar templates
16. [43]DHCP
17. [44]Triggers
18. [45]External command line poller
19. [46]IP address request system
20. [47]Authentication schemes
21. [48]Problems
22. [49]Limitations
23. [50]Questions and Answers (FAQ)
[51]http://sourceforge.net
_________________________________________________________________
1. Introduction
IPplan is a web based, multilingual, IP address management and tracking tool
based on [52]php 4, simplifying the administration of your IP address space.
IPplan can handle a single network or cater for multiple networks with
overlapping address space.
Current functionality includes
* internationalization
* importing network definitions from routing tables
* importing definitions from TAB delimited files and [53]NMAP's XML format
* multiple administrators with different access profiles (per group,
allowing access per customer, per network etc.)
* define address space authority boundaries per group
* finding free address space across a range
* split and join networks to make them smaller and larger - ip definitions
remain intact
* display overlapping address space between networks
* search capabilities
* an audit log - contents before and after change is logged
* statistics
* keeping track of and sending SWIP/registrar information
* DNS administration (forward and reverse zones, import existing zones via
zone transfer)
* template system to extend IPplan to contain site specific information
like circuit data, host configuration data, asset information
* device configuration file management
* external stylesheet to change display look
* triggers - every user event can call a user defined function - useful to
execute backend DNS scripts
* external poller - scan subnets for active addresses to gather usage
statistics
* IP address request system - allows users to request static IP addresses
from the database
Two authentication methods are available - either IPplan's own internal
authentication scheme, or alternatively make use of any external Apache
authentication module. This includes single sign on systems like SiteMinder
or your own scheme based on LDAP, or any other Apache compatible system.
_________________________________________________________________
1.1. Copyright Information
This document is copyrighted (c) 2002 Richard E and is distributed under the
terms of the Linux Documentation Project (LDP) license, stated below.
Unless otherwise stated, Linux HOWTO documents are copyrighted by their
respective authors. Linux HOWTO documents may be reproduced and distributed
in whole or in part, in any medium physical or electronic, as long as this
copyright notice is retained on all copies. Commercial redistribution is
allowed and encouraged; however, the author would like to be notified of any
such distributions.
All translations, derivative works, or aggregate works incorporating any
Linux HOWTO documents must be covered under this copyright notice. That is,
you may not produce a derivative work from a HOWTO and impose additional
restrictions on its distribution. Exceptions to these rules may be granted
under certain conditions; please contact the Linux HOWTO coordinator at the
address given below.
_________________________________________________________________
1.2. Disclaimer
No liability for the contents of this documents can be accepted. Use the
concepts, examples and other content at your own risk. As this is a new
edition of this document, there may be errors and inaccuracies, that may of
course be damaging to your system. Proceed with caution, and although this
is highly unlikely, the author(s) do not take any responsibility for that.
All copyrights are held by their by their respective owners, unless
specifically noted otherwise. Use of a term in this document should not be
regarded as affecting the validity of any trademark or service mark.
Naming of particular products or brands should not be seen as endorsements.
Warning
It is strongly recommended to make a backup of your system before major
installation or upgrades and to backup at regular intervals.
_________________________________________________________________
1.3. New Versions
See the CHANGELOG file for more information.
_________________________________________________________________
1.4. Credits
Thanks to [54]ValueHunt Inc. for the use of their layout class used for
rendering all HTML pages.
Thanks to [55]AdoDB for the use of their generic database abstraction class.
Thanks to [56]Vex for their Visual Editor for XML used to generate the
IPplan documentation.
Thanks to [57]The PHP Layers Menu System for their menu system.
_________________________________________________________________
1.5. Feedback
Feedback is most certainly welcome for this document. Without your
submissions and input, this document wouldn't exist. Please send your
additions, comments and criticisms to the following email address :
<[58]ipplan@gmail.com>.
_________________________________________________________________
1.6. Translations
See the INSTALL and TRANSLATIONS files on how to enable multilingual support
and how to do a translation to your own language. Doing a translation does
not require any programming experience. Current languages supported are
English, Bulgarian, French - Auto Translation, German - Auto Translation,
Italian - Auto Translation, Norwegian - Auto Translation, Portuguese - Auto
Translation and Spanish - Auto Translation.
Nickola Kolev for the Bulgarian translation - nikky at mnet.bg.
Conrado Pinto Rebessi for the Brazillian translation - conradopinto at
yahoo.com.br
Tadashi Jokagi for the Japanese transalation - elf2000 at
users.sourceforge.net
Vladimir Leshchenko for the Russian translation - worker at
smtn.stavropol.ru
_________________________________________________________________
2. Requirements
IPplan requires a working web server installation. Currently the [59]Apache
web server is preferred, but php as an ISAPI or CGI module on IIS works too
- follow the appropriate installation instructions in the IPplan directory
(INSTALL-IIS+MSSQL). Apache works just fine on Windows platforms too. For
installing Apache on a Windows platform, follow [60]these instructions. Or
you can use [61]AppServ or [62]WampServer which are complete installation
packages for Apache, MySQL and PHP for Windows - just add IPplan by
following the installation instructions in the IPPLAN-WINDOWS file (part of
IPPlan).
_________________________________________________________________
2.1. Databases
IPplan requires a working database installation. The following databases
currently work:
* [63]MySQL 3.23.15 or higher (preferred)
* [64]PostgreSQL 7.1 or higher
* [65]Oracle 9i or higher (SQL99)
* Microsoft SQL server (both 7 and 2000)
The following may work, but are untested - Sybase. In fact, any database
that supports SQL99 compliant joins, in particular LEFT JOIN, should work.
See limitations section below for more.
The web scripting language [66]php 4.1 or higher must also be installed as a
module in Apache (NOT as a cgi). Php must have the preferred database driver
compiled in and enabled. See the respective web sites and installation
documents for more detail. IPplan works just fine with a combination of the
Apache web server and php on a Windows platform - just read the relevant
installation instructions for Windows carefully.
Tip
IPplan is also known to work in a distributed, replicated MySQL environment
with multiple database servers. See [67]www.oreilly.com for more
information.
_________________________________________________________________
2.2. Additional features
To enable SNMP support, you will require the [68]ucd-snmp package installed
and configured in your environment. This must also be activated in the php
configuration. SNMP support is only required if you wish to read routing
tables directly from routers.
_________________________________________________________________
3. Installation
Follow the instructions for your platform and database in the INSTALL files
in the IPplan directory.
_________________________________________________________________
3.1. Customization
IPplan is customizable in many ways. See the sections on templates, triggers
and pollers. You can also extend the menu system to include your own custom
menus for other systems at your site - see the config.php file for an
example.
_________________________________________________________________
4. Downloads, bugs and forums
You can report bugs, contribute to forums and download it [69]here and look
at the latest [70]TODO and [71]CHANGELOG.
_________________________________________________________________
4.1. Screenshots
You can find some screen shots [72]here.
_________________________________________________________________
5. Mode of operation
There are two modes of operation, one can be classified as a services
company and the other as an ISP.
_________________________________________________________________
5.1. Services company
As a services company your primary use of IPplan will be to manage
individual IP address records and the address plan of one or more customers.
_________________________________________________________________
5.2. ISP
In ISP mode, you will assign blocks of IP address space to your customers.
In this mode, you will not be concerned at all with individual IP address
records and how the customer breaks down his assigned address space. When
you operate as an ISP, you may also generate SWIP/registrar entries, which
are only useful if you deal directly with ARIN or any other registrar. (SWIP
is enabled in the config.php file, see ARIN [73]tutorial for more details).
All the relevant SWIP/registrar information is entered when the customer is
created.
When using this mode, I suggest creating a dummy customer which holds all
the allocated address space from your regional registrar (ARIN?) already
broken up into the various blocks that you will eventually assign to your
customers. All these blocks should be called "free" to allow them to be
found using the "Find free" menu option. Once you are ready to assign a
block, create a new customer with all the relevant SWIP/registrar
information completed, go to your dummy customer and move a block of address
space to the newly created customer, and finally generate a SWIP/registrar
entry for the new block. In this mode areas and ranges are not too relevant
except for the dummy customer (see concepts below). You may also need to
create a template for your registrar in the templates directory. If you have
done this, feel free to contribute it to IPplan.
_________________________________________________________________
6. Concepts
The flow of address management is based on the creation of areas, then
ranges which belong to areas, and finally, subnets which belong to ranges.
Actually, only subnets are required, but on large networks it makes logical
sense to group the network into areas to ease administration and to reduce
routing updates on the network. There is a jpeg drawing included with the
distribution that graphically shows these relationships. The methodology
employed borrows significantly from OSPF routing concepts which are
explained more fully [74]here.
_________________________________________________________________
6.1. Deployment strategy
So in a new installation, first create the areas, then create ranges adding
them to areas, and finally create subnets. Searching is now a simple matter
of selecting an area which will display all the ranges for the area, or
selecting no area and simply selecting a range from the total list of
ranges, or simply selecting a base network address.
Note
Within a customer or autonomous system, no overlaps of address space is
allowed. This follows standard IP addressing rules. You can have overlapping
ranges/aggregates, but the default behaviour of ranges also prevents
overlaps. This can be changed in the config.php file.
To handle challenges like NAT or other overlapping address space, you will
be required to create multiple autonomous systems. See 'Searching' below how
to see information across multiple autonomous systems.
_________________________________________________________________
6.2. Linking addresses
IP address records can be linked together. This allows one address or
multiple addresses to reference another address or addresses. Using this
feature allows for the referencing of NATed addresses or having a link to a
loopback address of a device. Linking is done on the IP address details page
by completing the "Linked address" field. Once the field is completed, you
can follow the link. The link also appears on subnet summary pages.
You can also link many addresses in one go by choosing multiple addresses in
the "Select multiple addresses to do a bulk change" window, then completing
the "User" field as follows:
LNKx.x.x.x userinfo
The LNK identifier must be in uppercase, followed by exactly one valid IP
address with no spaces, then followed by an optional space and user
description. After the page is submitted, the embedded LNK will vanish.
Note
If the destination record of a linked address does not exist, a record will
automatically get created pointing back to the source address, but only if
the destination subnet exists. This is to signal the "Find Next Free"
address logic of the subnet that the destination address is used.
_________________________________________________________________
7. Administration
The access control is divided up into three layers and revolves around the
creation of groups:
_________________________________________________________________
7.1. Admin user
Firstly you will need to create users and groups using the admin user
defined in the config.php script. The admin user can only be used on the
admin pages. Once you are done with the admin functions, you will be
required to re-authenticate as one of the newly created users as soon as you
access functions on the main index page.
_________________________________________________________________
7.2. Customer access
When a customer is created, a group must be assigned to the customer. This
will be the customers admin group and all members of this group can create
and delete both subnets, ranges, areas and individual IP address records for
the customer.
When the subnet is created, the creator will choose a subnet admin group.
_________________________________________________________________
7.3. Subnet access
The users assigned to the group that has subnet access can only modify
individual IP records for that subnet.
Initially I would create three groups, one group that can create customers,
one group that can create subnets, areas and ranges, and another group which
can only modify individual IP records. Normally in large networks the people
that modify IP records are not the same people that administer routers and
configure the IP address space.
If a group is set to see only a particular customer, the same group needs to
be used for all operations for the customer. The side effect to this is that
the users assigned to the group have full access to the customer and can
make any changes to the customers data, including creating and deletion of
subnets. This is not ideal and will be changed in future.
Tip
Groups can be created that prevent certain users from changing an
administrator defined number of reserved addresses at the start of a subnet.
_________________________________________________________________
7.4. Group authority boundaries
Areas of responsibility can be assigned to a group, thus limiting what
address space a group can create networks in. The default behavior allows
administration anywhere. Care should be taken when using this feature as
changing the boundaries at a later stage may orphan some parts of the
database and yield data inaccessible.
Note
If a user belongs to multiple groups and one of the groups does not have
boundaries defined, then the user is granted all access. Thus boundaries are
a sum of all the boundaries the user belongs to.
Tip
Bounds are also useful to create users that only have read access to the
IPplan information. Select the "Read Only" option when creating a new group.
_________________________________________________________________
8. Circuit administration, host configuration data and asset information
Using the template capability IPplan can be extended to contain custom
information about your site. You can add any number of custom fields for
your site. See the section on "Templates" for further information.
_________________________________________________________________
9. Device configuration file management
Any number of files can be attached to individual IP records. Using this
feature, configuration data (text and binary, drawings etc) for devices can
be stored and managed by IPplan.
_________________________________________________________________
10. DNS administration
Both forward and reverse zones can be created via the web interface. Zone
domains are forward zones - there can be as many forward zones as you like
per customer. Each of these can be unique or they can even overlap with
other customers.
Forward Zones:
To create a forward zone, select a customer and select "Add a DNS zone". The
next screen will allow you to enter information for the new zone. The domain
name must be entered as must at least two nameservers.
At this point you have the option of creating a new zone from scratch,
cloning (copying) a zone from an already existing zone called
"template.com", or importing an existing zone via a zone transfer. If you do
a zone transfer, the PRIMARY or SECONDARY DNS servers must be directly
contactable from the webserver on which IPplan is running. If the DNS server
is not contactable an error will be returned.
If a domain is created from scratch, the domain name must be entered as must
at least two upstream DNS servers. The DNS servers are automatically entered
for you if the customer record (created via "Create a new
customer/autonomous system") contains DNS servers. This is a good way to not
have to manually add the DNS servers for each new zone created. The DNS
servers can be changed and will be independent per zone created. At the
bottom of the Add/Edit screen is place to enter two zone file paths. In
future this can be used to determine where the zone must be saved or on what
DNS server the zone must be created - currently these fields do nothing.
The next step is to add individual records to the newly created zone. Do
this under the "Zone DNS records" main menu function. Select the customer,
select the domain and add a host. The "Host name" refers to the left hand
side of a bind zone file, then the type (A, CNAME or MX - more types in
future) and the "IP/Hostname" refers to the right hand side of the zone
file. In future the screen will change depending on the record type you
select and more record types will be possible. The sort order determines the
placement of the record in the zone and on the screen. This is a number and
the default is 9999 or the end of the file. If you want to insert records
between other records, work out a numbering plan.
In future this will be automatic with options to "Insert before" and "Insert
after". Currently you can renumber the values retaining the order of the
entries.
Reverse zones:
To create reverse zones is very much like creating a forward zone, except
that there are no detail records. All that is required is to create a
starting address and mask. The actual reverse records are extracted based on
the start and mask from the IP records when you create a subnet and add
records to the subnet. The field used is the host name field and all invalid
information in this field will be ignored with a warning.
Once your forward and reverse zones are created, each time a change is made
you will be required to export the zone by clicking on the "Export zone"
option. The output generated is in XML and must then be parsed using and
XSLT processor into a format compatible with your DNS server.
_________________________________________________________________
10.1. Handling exported zones
The zone files are created in the directory specified by the DNSEXPORTPATH
variable in the config.php file. The files are in XML format and are created
when a user hits the Export option either on the DNS page or Reverse zone
page. The files have a format of zone_ or revzone_ followed by the zone name
followed by a trailing unique identifier, which is operating system
dependent. The file has a .xml extension.
If a template is attached to the forward zone, the template fields will also
appear in the exported XML file with tag names the same as the template
field names.
These files must be processed using a XML stylesheet processor into a format
suitable for your DNS server, and then placed into the correct location and
activated by your DNS server. This is beyond the scope of IPplan and will
require custom scripts for your installation. Contributions are welcome.
Sample procedure:
You will require a script for your environment that periodically runs to
check for new zone files that have been added to the output directory. You
will probably use cron to do this. Once your script finds a file, you can
extract the file paths saved in IPplan using a simple grep:
grep -A 1 '<primary>' /tmp/revzone_FS9mEU|grep -v '<primary>'
This gives me the primary file path. Once you have the destination path,
process the file and copy the output by whatever means your environment uses
to the target DNS server. I would suggest using scp with a public key on the
remote server to prevent having to type in user id's and passwords during
the copy process.
Processing the file:
A sample XSLT stylesheet can be found in the contrib directory to transform
the forward zone XML (files starting with zone_) into a bind8 or higher
compatible zone file. I use xsltproc from the libxslt package (
[75]http://xmlsoft.org/XSLT/) which should be installed on most modern linux
systems. A different stylesheet (.xsl file) will be required for each DNS
server system that you use - I have no intention of writing style sheets for
all the various DNS servers out there, but you are more than welcome to send
me style sheets for different DNS servers to be included with IPplan.
A sample command is:
xsltproc bind9_zone.xsl zone_
For sample XML input of:
<?xml version="1.0" ?>
<zone domain="test.com">
<soa serialdate="20040626" serialnum="04" ttl="21600" retry="3600" refresh="864
00" expire="604800" minimumttl="21600" email="" />
<record><NS><iphostname>ns1.example.com</iphostname></NS></record>
<record><NS><iphostname>ns2.example.com</iphostname></NS></record>
<record><NS><iphostname>ns3.example.com</iphostname></NS></record>
<record><NS><iphostname>ns4.example.com</iphostname></NS></record>
<record><A><host>myhost</host><iphostname>10.10.10.1</iphostname></A></record>
<record><CNAME><host>myhost-alias</host><iphostname>myhost</iphostname></CNAME>
</record>
<record><MX><host></host><iphostname>mailhost</iphostname></MX></record>
</zone>
Generating output as follows:
$ORIGIN test.com.
$TTL 86400
@ IN SOA test.com. dnsadmin.test.com. (
2004062604 ; serial
21600 ; refresh
3600 ; retry
604800 ; expire
21600 ) ; minimum TTL
IN NS ns1.example.com.
IN NS ns2.example.com.
IN NS ns3.example.com.
IN NS ns4.example.com.
myhost IN A 10.10.10.1
myhost-alias IN CNAME myhost
IN MX 10 mailhost
_________________________________________________________________
10.2. Automatic updating of zone records
IP subnet records (which equate to zone PTR records) and forward zone A
records will automatically get syncronised and updated provided a number of
criteria are fulfilled.
If a DNS A record is created or updated, and there is exactly one A record
across all the customers zones matching one IP subnet record, then the IP
record hostname field will be updated with the A record hostname field.
If an IP record hostname field is updated, then the zone A record field will
be updated if there is exactly one A record matching the IP record across
all the customers zones.
If an IP record hostname field is updated and a matching A record cannot be
found, then an A record will automatically be created in the matching domain
provided there is only one matching domain. This will only happen if the
DNSAUTOCREATE setting is TRUE in config.php.
Under all the above conditions a warning message will be displayed stating
that an update occured. The appropriate log entries will be made and
triggers will fire.
_________________________________________________________________
11. Dealing with registrars
Registrars are interacted with by email. IPplan can manage all the records
and manage all the fields and data required to generate the registrar
updates, no matter what the registrar is (ARIN, RIPE, APNIC etc). Before
these functions will work, the correct config variables need to be set -
these include the REGENABLED, MAINTAINERID, REGISTRY, REGEMAIL etc. Only
users belonging to the customer admin group can send these updates.
Additional fields can be added to the IPplan display pages if required, and
these fields are also available to the registrar templates.
To generate updates, the required registrar template is selected. IPplan
includes a limited number of templates, but these are fully customizable and
simple to create and modify - see the section on "Templates" later in the
manual. Once the template is selected, the fields from the database are
substituted into the template file and the output is displayed on the
screen. The user then selects which updates should be sent to the registrar.
The selected updates are then sent via email and the date the updates were
sent are recorded in the IPplan database.
_________________________________________________________________
12. Searching
Creating a special customer called 'All' allows searching for information
across all the available customer/autonomous systems using the 'Display
subnet' function. This special customer can contain areas and ranges that
limit the scope of searches, just like normal customers. Using this feature
allows a user to see the entire network picture in one view.
Tip
When creating new subnets, it is also beneficial to create unused subnets
with a a description of either 'free' or 'spare'. These can be searched for
at a later stage using the 'Find Free' function.
Tip
It may also be beneficial to give ASE (Autonomous System External, networks
not local to yours) a special handle like EXTERNAL so that they can be
searched for at a later stage. These networks often appear in routing tables
as static routes to third parties (not via the Internet).
_________________________________________________________________
12.1. Searching for individual address details
Searching can also be done on individual addresses using the 'Match any IP
address in subnet' option of the 'Display subnet information' option. This
is useful for finding which networks, either for a single customer, or for
all customers an IP address belongs to. Using this option makes it easy to
find the offending network in a complaint situation if you are an ISP.
If matching by IP address, you will automatically jump to the IP address
edit page if the search is unique and matches only one subnet from one
customer. If you use the 'All' customer you will need to click on the
relevant customer network you wish to work with.
_________________________________________________________________
12.2. Searching areas and ranges
You can also create areas and ranges to search across only certain address
space ranges. Areas are containers for ranges. Selecting an area that has
ranges attached will search only in those ranges. Select an area and not
selecting a range will search across all the ranges in the area.
Depending on what settings have been selected in the config.php file, ranges
may either never overlap (the default), have overlaps within an area only,
or overlap in anyway, including having duplicate ranges.
Note
Areas with no attached ranges will not display in the "Area" selection list
until ranges are added to the area. Areas with no ranges yeild no search
results.
_________________________________________________________________
13. Config file
A a number of settings that can be changed in the config.php file. These
include the database connection information, admin user and password, and
the number of lines displayed in tables. See the comments in the config.php
file for more details.
_________________________________________________________________
14. Importing data
Data can be imported by the admin user via TAB delimited text files or from
output generated in XML format by [76]NMAP.
_________________________________________________________________
14.1. TAB delimited data
Network definitions or individual ip records can be imported in TAB
delimited format.
The order of columns for network definitions or subnet descriptions are
(three columns required): The first column contains the IP base address, the
second the description and the third the mask either in dotted decimal
format or in bit format.
The order of columns for importing IP records should be (six columns
required): The first column contains the IP address, the second the user,
the third the location, the fourth the description, the fifth the hostname
and the sixth the telephone number.
If you have more than six columns, the remaining columns will be entered
into the user defined fields specified in the template. The order will be
the order the fields are defined in the XML template file.
See the templates section for details on how the templates work.
_________________________________________________________________
14.2. Importing using NMAP
A typical application for this would be to obtain data for networks that
there are no records for. NMAP would be used to obtain the host info of all
the addresses that are active on the network. Once this is done, the data
can be read into IPplan. The NMAP parameters required by IPplan to generate
a valid import file are:
 -sP -oX output.xml
To speed up the process, you can add -n to not resolve host names. The
import process also understands the -O operating system detection parameter.
To use -O, you will need to drop the -sP parameter. Using -O increases
scanning time significantly.
As of version 3.93 of nmap, the -sP option also returns the MAC address
which will be recorded in the MAC address field of the subnet IP record. MAC
addresses only appear if the scan was done using root user - thus the MAC
address will not appear if nmap was executed through php and the webserver.
You can set the S bit on the nmap binary, but this is not advised due to
security concerns.
_________________________________________________________________
15. Templates
Various forms of templates are available. These include templates that add
additional, custom fields to the IPplan display pages (different templates
can be added to the customer, subnet and ip address record pages), and
templates that then munipulate the data contained in the IPplan databases to
generate output for various registrars. All of these templates are fully
administrator customizable with display fields added to customer and subnet
pages automatically available in output templates used to generate registrar
updates.
_________________________________________________________________
15.1. Customer, Subnet, DNS and IP address templates
The administrator can define a custom template in IPplan to allow the
addition of as many custom fields to the customer, subnet, DNS forward zones
and ip address record pages as the administrator wishes. This functionality
allows flexibility in the way data is added to the database. Some uses for
these templates include tracking asset information or WAN circuit
information, the management of DHCP address space, dealing with additional
and ever changing registrar requirements.
As mentioned there are different template files for the customer, subnet,
DNS and IP address pages. The template for each of these pages has a
different name:
Customer pages - custtemplate.xml
Subnet pages - basetemplate.xml
DNS forward zones - fwdzonetemplate.xml
IP address pages - iptemplate.xml
IP address pages (network address) - iptemplate-network.xml
A sample template called iptemplate.xml.sample can be found in the
/ipplan/templates/display directory.
If a template called called iptemplate-network.xml exists, then this
template will be used for network addresses (the first address of the
subnet). This is useful to define subnet wide information like VLAN id's,
telco line numbers, router configurations etc. If the iptemplate-network.xml
does not exist, then the iptemplate.xml template will be used for network
addresses.
The above templates are generic and act across all customers, and thus all
fields are the same for all customers. Unique templates can be created per
customer by adding the customer id to the template name. To obtain the
customer id (a number), use the Admin/Maintenance function within IPplan. To
create a unique IP address template for customer id 25, place a template
file called iptemplate-25.xml in the /ipplan/templates/display directory.
This template will override the default template for customer 25 only.
_________________________________________________________________
15.1.1. Format of Customer, Subnet and IP address template files
The templates are well formed XML files with a .xml extension and should be
stored in the /ipplan/templates/display directory. You should use the
xmllint tool to test the XML file before using it with IPplan - no errors
should be returned.
The standard iptemplate.xml file adds a free form text field to all the ip
address record pages and has this definition:
<?xml version="1.0" ?>
<TEMPLATE>
<FIELD>
<DEFINITION NAME="info" DESCRIP="Additional information" TYPE="T" MAXLENGT
H="10000" SIZE="80" ROWS="10" REGEX="" ERRMSG="Invalid field: Additional inform
ation" />
</FIELD>
</TEMPLATE>
A field definition to add a select drop down list:
<FIELD>
<DEFINITION NAME="select" TYPE="S" DESCRIP="This is select list with two o
ptions" DEFAULT="2">
<SELECT OPTION="Option 1" VAL="1" />
<SELECT OPTION="Option 2" VAL="2" />
</DEFINITION>
</FIELD>
The template file must be surrounded with <TEMPLATE> statements. Note that
XML tags are case sensitive and must match as per the example. Each field is
contained in a <FIELD></FIELD> statement. Each field must have exactly one
<DEFINITION> line. Any line with an error will be silently ignore! The
following are valid for a definition:
NAME
This is the field name used internally to track the names of the variables.
Can contain letters and numbers only - no spaces or anything else.
DESCRIP
This is the description that will be displayed above the field.
TYPE
This is the type of the field. C for a character field and T for a memo or
multi-line field, S for a select drop down list.
DEFAULT
The default value for the field the first time the field is completed.
MAXLENGTH
This is the maximum number of characters a field can consist of.
SIZE
This is the display length of the field on the screen - if SIZE is less than
MAXLENGTH, the field will scroll. SIZE may not be more than MAXLENGTH.
ROWS
This is the number of rows to display on the screen - only valid for text or
multi-line fields.
REGEX
This is a regular expression to test validity of the entered information. To
test a field, use ^ and $ to signify the start and end of the field, so
something like
^[a-zA-Z0-9]$
ensures that the field only contains numbers and letters. See
http://regexlib.com/ for more on regular expressions.
Regular expressions are PERL compatible and use a / character as the
delimiter, thus if you want to match on a /, you will need to escape the /.
So to match a letter, / and a number, this is the expression
^[a-zA-Z\/0-9]$
Regular expression | can be used for multiple matches. Thus the following
will match a field or a blank entry
^[a-zA-Z\/0-9]$|^$
ERRMSG
This is the error message that is displayed if the regular expression match
fails.
Default template:
The default template contains one field which is the "Additional
information" field of older versions of IPplan. If you do not want this
field, change the template or delete the template entirely.
Template rules:
If you delete the template all fields will vanish and cannot be accessed. IP
records that have been completed with fields from a template will not be
lost, but records that do not have template fields cannot have template
fields added until the template is either restored or similar fields are
added.
Note
Deleting fields from a template results in existing fields in the database
with template data using a default field definition. The data is not lost.
It is not a good idea to modify or change the template on a production
system. Plan the template fields carefully before implementing.
_________________________________________________________________
15.2. Registrar templates
Templates for sending information to registrars should be well formed XML
stylesheets. See the existing templates in the /ipplan/templates directory
for examples. Currently only the
<xsl:value-of select="variable"/>
tag is understood and all other XML tags are stripped, thus only variable
substitution is done. This is to prevent requiring the XSLT php library to
be compiled in. In future XML stylesheets will be supported in full.
There are a number of special variables available during the registrar
output process which are defined in the config.php file:
source -> the REGISTRY config setting
maint -> the MAINTAINERID config setting
regid -> the REGID config setting
password -> the REGPASS config setting
date -> todays date in UTC format
in addition to the standard customer page variables:
ntsnum -> starting of IP address range
ntenum -> end of IP address range
ntname -> network name as defined in the
subnet description field
DNS:
hname1 -> DNS hostname 1
ipaddr1 -> Primary DNS server
hname2 -> DNS hostname 2
ipaddr2 -> Secondary DNS server
hname3 -> DNS hostname 3
ipaddr3 -> Third DNS server
.
.
.
hname10 -> DNS hostname 10
ipaddr10 -> Thenth DNS server
Contact:
org -> Organization
street -> Street
city -> City
state -> State
zipcode -> Zip code/Postal code
country -> Two letter country code
Technical contact:
nichandl -> Nickname/handle
lname -> Lastname
fname -> Firstname
mname -> Middle name
torg -> Organization
tstreet -> Street
tcity -> City
tstate -> State
tzipcode -> Zip code/Postal code
tcntry -> Two letter country code
phne -> Phone number
mbox -> Email address
Plus any variables defined in a customer template (custtemplate.xml) and
also the subnet template (basetemplate.xml) as described above will also be
available. The names of the variables will be the same as defined in the
customer template.
Thus the following basetemplate.xml file:
<?xml version="1.0" ?>
<TEMPLATE>
<FIELD>
<DEFINITION NAME="remarks" DESCRIP="Remarks" TYPE="C" MAXLENGTH="100" SIZE
="100" ROWS="1" REGEX="" ERRMSG="RIPE remarks" />
</FIELD>
</TEMPLATE>
will provide the following additional variable to the registrar template
remarks -> Remarks field for subnet
Note
If there are duplicate variable names defined, the variables in the
basetemplate.xml file, then the custtemplate.xml file appearing in the
"Additional information" section of the customer and subnet administration
pages will have precedence over any standard variables.
_________________________________________________________________
16. DHCP
A special sample template called basetemplate.xml.dhcp can be used in place
of the basetemplate.xml file to provide DHCP support. This template works in
conjunction with the DHCP export function of IPplan. For a DHCP export to
work, the subnet must have the correct template, the subnet must be marked
as DHCP and subnet address descriptions must start with the 'DHCPRESERVED'
config.php variable. Once an export has been initiated, the resulting output
must be processed via an XML parser just like any other export function of
IPplan.
Multiple address pools can be simulated by adding numbers to the end of the
IP address decsriptions eg. 'Reserved - DHCP pool 1'. Static assignments are
dealt with automatically if an IP address has a valid MAC address assigned.
_________________________________________________________________
17. Triggers
Every database event (create a customer, update an ip record, export a DNS
zone file etc) in IPplan can trigger an external user defined function or
script. This is useful to update and external system like a DNS server once
something in IPplan has changed.
You will be required to write your own custom script to do the required
action. This script will be called from the user_trigger() function in the
ipplanlib.php script. See the comments of this function for more details.
A list of all the IPplan triggers and what information is passed to the
user_trigger() function can be found in the TRIGGERS file.
_________________________________________________________________
18. External command line poller
The poller allows you to periodically scan subnets for addresses that are
active on the network. This information is then logged in the IPplan
database and will appear on the display subnet page. You can find the poller
script in the IPplan contrib directory.
The scans are done using nmap, thus large networks can be scanned rapidly.
Subnets that are to be scanned get entered into a plain text file, so
maintenance is easy. Polling can be automated by adding the poller to cron.
Firstly, you will need to create a file containing a list of
networks/addresses that you would like to poll. The file is a text file with
one address per line in the any format that the nmap command understands
(type nmap -h for more info).
10.10.10.0/24
10.10.11.*
10.12.12.1
Once you have created your file you will need to make sure the poller is
configured correctly. Edit the poller file and change the path at the top to
the correct place where the command line php can be found on your system.
You can find the location by typing
which php
Next make sure that nmap can be found. Type
which nmap
and either update the NMAP statement in the IPplan config.php file, or
uncomment the NMAP define at the top of ipplan-poller.php and update to
reflect the correct path to nmap. This define will override whatever is in
config.php allowing a different NMAP to be used. You may also leave
config.php blank to prevent scanning from within the IPplan web frontend.
Now run the ipplan-poller.php file with the -d option, or navigate to the
admin->maintenance page. This will dump a list of customers and customer
id's. You need to find the id of the customer you want to update:
php -q ipplan-poller.php -d
ID Description
2 Test
46 Test customer
47 Test customer 2
Finally run the poller again with the correct command line (assuming you
want to update the customer called "Test customer" which has id 46):
php -q ipplan-poller.php -c 46 -f nmap.list
If the configuration is correct and there are no errors, there should be no
output - the database is updated silently in the background. Any address
that was successfully polled will now have a key in the "Pol" column on the
IPplan display pages.
D polled today
W polled within last week
M last month
Y last year
You can now add the above line to cron to scan certain subnets periodically.
The following command line options are available with the poller:
IPplan poller v1.0
-h this message!
-q suppress check if tool is executed from the command line
-d dump a list of customers and customer id's
-f filename containing list of subnets to scan, one per line in addres
s/bits format
see the NMAP manpage for examples
-hostnames resolve and populate hostnames
-time timestamps the scan at start and completion
-a create auditlog entries for newly added records
-c customer id to update
example: php ipplan-poller.php -d
php ipplan-poller.php -time -hostnames -f /tmp/nmap.lst -c 1
Using the -hostnames option will query the DNS when polling addresses and
update the host name field within IPplan with the DNS name. Note that using
this option could significantly increase polling time, especially with
incorrectly configured DNS servers. Use the -time option to determine impact
of using the -hostnames option.
Note
Security: You should use a different user and password to access the
database using the command line poller. I suggest creating a user that can
only SELECT, UPDATE and INSERT into the ipaddr table, and SELECT from the
base and customer tables. See your database administrator or manual for more
details.
_________________________________________________________________
19. IP address request system
IPplan has a request feature whereby users can request individual IP
addresses by completing a form. This form is then submitted into the IPplan
database and via email to an administrator or help desk account for
processing. When the administrator processes the request, all outstanding
requests for a particular customer/AS will appear on the IP address modify
screen. The administrator picks the relevant address from the list and all
the fields are automatically completed with the request details. The
administrator can then change some of the fields details before submitting.
When the form is submitted, the request is deleted.
Up to 100 outstanding requests can be active at one time (this is
configurable by changing a variable at the start of the requestip.php
script). This is to prevent denial of service on the database as the request
page is not authenticated. Excess junk requests can be cleared via an admin
only option on the maintenance page.
Request email addresses are set in the config file. The list of visible
customers/AS's that addresses can be requested for are also set via config
options. The default is that addresses can be requested for all customers.
The request page also has the top menu structure disabled by default (this
can be enabled by changing a variable at the start of the requestip.php
script). Disabling the menu allows the page to be used as a generic request
page on a sites intranet server without confusing regular users with menu
options they cannot use or access.
Tip
If an email field exists in the iptemplate.xml file, this field will be used
to popup an email window, allowing the newly actioned requested address to
be emailed back to the requester. The email window will only display after
Submit has been pressed and the user has entered a valid email address.
A sample definition for this field is as follows:
<FIELD>
<DEFINITION NAME="email" DESCRIP="Email address" TYPE="C" MAXLENGTH="100" SIZE
="100" ROWS="1" DEFAULT="" REGEX="" ERRMSG="Invalid field: Additional informati
on" />
</FIELD>
See the section on templates for more information.
If a valid email address is found in the above field you will be given the
option to email the details back to the requester. The gateways are site
specific and can vary - manual completion of this field is required unless
one of the subnet addresses has a description field starting with GW. This
address will then be used as the gateway address in the email.
_________________________________________________________________
20. Authentication schemes
IPplan supports either its own internal authentication scheme, or an
external scheme based on the Apache webservers authentication modules. To
use an external scheme, change the setting in the config.php file. Next,
place the relevant .htaccess file in the IPplan user subdirectory
(/ipplan/user). Do not place an equivalent file in the admin subdirectory as
the admin account cannot be overridden.
Note
When using the external authentication method, IPplan never prompts for a
userid and password. It is the responsibility of the external module to do
the prompting, if any. IPplan uses the credentials supplied and matches them
to the IPplan userid records to determine if access should be granted.
Important
The relevant users requiring access to IPplan must still be created via the
IPplan admin interface, but no password information is required as this is
overridden by the external authenticator.
If the user is removed from the external authenticators database (ldap,
radius etc), the user will no longer be able to log in to IPplan even if the
account still exists in IPplan. This scheme only handles single signon and
password changes, not single point of administration.
Make sure that the external authenticator only returns the userid in the php
REMOTE_USER variable. Ldap (or auth_ldap) by default will return the entire
DN, but this can be configured to return only the userid. From the auth_ldap
docs at [77]http://www.rudedog.org/auth_ldap/1.6/auth_ldap.html ensure that
the AuthLDAPRemoteUserIsDN is set correctly. You will also need to look at
the AuthLDAPGroupAttributeIsDN attribute.
Read the instructions in config.php carefully for debug tips.
External authentication was tested against SiteMinder and the Apache
[78]auth_ldap module. The [79]CAS authentication module is also supported -
there are special config.php variables to support this configuration.
Warning
THE HTTP BASIC AUTHENTICATION SCHEME DOES NOT ENCRYPT USER-IDS AND PASSWORDS
TRANSMITTED TO THE WEBSERVER - IT IS RECOMMENDED THAT IPPLAN IS INSTALLED ON
AN SSL PROTECTED WEBSERVER ON PRODUCTION SYSTEMS.
_________________________________________________________________
21. Problems
* PHP's IP management functions and binary arithmetic functions are
seriously broken (see [80]bug report logged) Due to this limitation, the
biggest subnet that can be created is limited to 254k hosts.
* This brokenness also prevents the use of the ip2long() and long2ip()
functions introduced with php 4.x. I have used php only functions called
inet_aton() and inet_ntoa().
* SNMP appears to be broken on Redhat 7.2 systems. Try following these
[81]instructions for help.
_________________________________________________________________
22. Limitations
* Due to the authentication scheme used, only the Apache web server is
supported currently. PHP installed under IIS as a cgi is reported to
work too.
* IPplan can be run with php configured for safe_mode=on and
register_globals=off.
* IPplan was developed using MySQL as a database. Using other databases
require workarounds for some functionality which is not optimal. During
my own tests, speed was visibly faster using MySQL.
_________________________________________________________________
23. Questions and Answers (FAQ)
Check the forums on SourceForge too.
The FAQ is no longer maintained in the manual - check online at the
[82]IPplan homepage.
References
1. http://www.php.net/
51. http://sourceforge.net/
52. http://www.php.net/
53. http://www.insecure.org/
54. http://www.vhconsultants.com/
55. http://adodb.sourceforge.net/
56. http://vex.sourceforge.net/
57. http://phplayersmenu.sourceforge.net/
58. mailto:ipplan@gmail.com
59. http://httpd.apache.org/
60. http://httpd.apache.org/docs/windows.html
61. http://www.appservnetwork.com/
62. http://www.wampserver.com/en/index.php
63. http://www.mysql.com/
64. http://www.postgresql.org/
65. http://www.oracle.com/
66. http://www.php.net/
67. http://www.oreilly.com/catalog/hpmysql/chapter/ch07.pdf
68. http://sourceforge.net/projects/net-snmp
69. http://sourceforge.net/projects/iptrack
70. http://cvs.sourceforge.net/viewcvs.py/iptrack/ipplan/TODO?view=markup
71. http://cvs.sourceforge.net/viewcvs.py/iptrack/ipplan/CHANGELOG?view=markup
72. file://localhost/home/richarde/public_html/iptrackdev/ipplan/screenshots
73. http://www.arin.net/minutes/tutorials/swipit.htm
74. http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/ospf.htm
75. http://xmlsoft.org/XSLT/
76. http://www.insecure.org/
77. file://localhost/home/richarde/public_html/iptrackdev/ipplan/README.html
78. http://www.rudedog.org/auth_ldap/
79. http://www.ja-sig.org/products/cas/index.html
80. http://www.php.net/bugs.php?id=10924
81. https://sourceforge.net/forum/forum.php?thread_id=627391&forum_id=101033
82. http://iptrack.sourceforge.net/
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