1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
|
TELNET OPTIONS
The Telnet Protocol has a number of options that may be negotiated.
These options are listed here. "Internet Official Protocol Standards"
(STD 1) provides more detailed information.
Options Name References
------- ----------------------- ----------
0 Binary Transmission [RFC856]
1 Echo [RFC857]
2 Reconnection [NIC50005]
3 Suppress Go Ahead [RFC858]
4 Approx Message Size Negotiation [ETHERNET]
5 Status [RFC859]
6 Timing Mark [RFC860]
7 Remote Controlled Trans and Echo [RFC726]
8 Output Line Width [NIC50005]
9 Output Page Size [NIC50005]
10 Output Carriage-Return Disposition [RFC652]
11 Output Horizontal Tab Stops [RFC653]
12 Output Horizontal Tab Disposition [RFC654]
13 Output Formfeed Disposition [RFC655]
14 Output Vertical Tabstops [RFC656]
15 Output Vertical Tab Disposition [RFC657]
16 Output Linefeed Disposition [RFC658]
17 Extended ASCII [RFC698]
18 Logout [RFC727]
19 Byte Macro [RFC735]
20 Data Entry Terminal [RFC1043,RFC732]
21 SUPDUP [RFC736,RFC734]
22 SUPDUP Output [RFC749]
23 Send Location [RFC779]
24 Terminal Type [RFC1091]
25 End of Record [RFC885]
26 TACACS User Identification [RFC927]
27 Output Marking [RFC933]
28 Terminal Location Number [RFC946]
29 Telnet 3270 Regime [RFC1041]
30 X.3 PAD [RFC1053]
31 Negotiate About Window Size [RFC1073]
32 Terminal Speed [RFC1079]
33 Remote Flow Control [RFC1372]
34 Linemode [RFC1184]
35 X Display Location [RFC1096]
36 Environment Option [RFC1408]
37 Authentication Option [RFC2941]
38 Encryption Option [RFC2946]
39 New Environment Option [RFC1572]
40 TN3270E [RFC1647]
41 XAUTH [Earhart]
42 CHARSET [RFC2066]
43 Telnet Remote Serial Port (RSP) [Barnes]
44 Com Port Control Option [RFC2217]
45 Telnet Suppress Local Echo [Atmar]
46 Telnet Start TLS [Boe]
47 KERMIT [RFC2840]
48 SEND-URL [Croft]
49 FORWARD_X [Altman]
50-137 Unassigned [IANA]
138 TELOPT PRAGMA LOGON [McGregory]
139 TELOPT SSPI LOGON [McGregory]
140 TELOPT PRAGMA HEARTBEAT [McGregory]
255 Extended-Options-List [RFC861]
Telnet Authentication Types (Option 37)
In [RFC2941], a list of authentication commands and types is
documented. Additions to the list are registerd by the IANA and
documented here. Note: Authentication types followed by (*) were
never submitted to the IETF for consideration as an Internet standard.
Command Description Reference
0 IS [RFC2941]
1 SEND [RFC2941]
2 REPLY [RFC2941]
3 NAME [RFC2941]
Type Description Reference
0 NULL [RFC2941]
1 KERBEROS_V4 [RFC2941]
2 KERBEROS_V5 [RFC2942]
3 SPX [RFC2941] *
4 MINK [RFC2941] *
5 SRP [RFC2944]
6 RSA (also used by SRA) [RFC2941]
7 SSL [RFC2941]
8-9 Unassigned [IANA]
10 LOKI [RFC2941] *
11 SSA [Schoch]
12 KEA_SJ [RFC2951]
13 KEA_SJ_INTEG [RFC2951]
14 DSS [RFC2943]
15 NTLM [Kahn] *
In [RFC 1411], on the KERBEROS_V4 Telnet Authentication type there are
a set of Suboption Commands. Additions to the list are registerd by
the IANA and documented here.
Suboption Command Reference
0 AUTH [RFC1411]
1 REJECT [RFC1411]
2 ACCEPT [RFC1411]
3 CHALLENGE [RFC1411]
4 RESPONSE [RFC1411]
5 FORWARD [Brashear]
6 FORWARD-ACCEPT [Brashear]
7 FORWARD-REJECT [Brashear]
8 EXP [Wu]
9 PARAMS [Wu]
In the KERBEROS_V5 Telnet Authentication type there are a set of
Suboption Commands. Additions to the list are registerd by the IANA
and documented here.
Suboption Command Reference
0 AUTH [RFC2942]
1 REJECT [RFC2942]
2 ACCEPT [RFC2942]
3 RESPONSE [RFC2942]
4 FORWARD [RFC2942]
5 FORWARD_ACCEPT [RFC2942]
6 FORWARD-REJECT [RFC2942]
In the DSS Telnet Authentication type there are a set of
Suboption Commands. Additions to the list are registerd by the IANA
and documented here.
Suboption Command Reference
1 DSS_INITIALIZE [RFC2943]
2 DSS_TOKENBA [RFC2943]
3 DSS_CERTA_TOKENAB [RFC2943]
4 DSS_CERTB_TOKENBA2 [RFC2943]
In the SRP Telnet Authentication type there are a set of Suboption
Commands. Additions to the list are registerd by the IANA and
documented here.
Suboption Command Reference
0 AUTH [RFC2944]
1 REJECT [RFC2944]
2 ACCEPT [RFC2944]
3 CHALLENGE [RFC2944]
4 RESPONSE [RFC2944]
5-7 Unassigned [RFC2944]
8 EXP [RFC2944]
9 PARAMS [RFC2944]
In the KEA_SJ and KEA_SJ_INTEG Telnet Authentication types, there are
a set of Suboption Commands. Additions to the list are registerd by
the IANA and documented here.
Suboption Command Reference
1 KEA_CERTA_RA [RFC2951]
2 KEA_CERTB_RB_IVB_NONCEB [RFC2951]
3 KEA_IVA_RESPONSEB_NONCEA [RFC2951]
4 KEA_RESPONSEA [RFC2951]
Telnet Encryption Types (Option 38)
In the Telnet Encryption commands and types [RFC2946] there have been
various implementations in several widely distributed versions of
Telnet (e.g., at MIT, Stanford, and Columbia). Originally, only two
encryption types were specified. Additional encryption types have
been defined and are listed below. Additions to the list are
registerd by the IANA and documented here.
Command
0 IS [RFC2946]
1 SUPPORT [RFC2946]
2 REPLY [RFC2946]
3 START [RFC2946]
4 END [RFC2946]
5 REQUEST-START [RFC2946]
6 REQUEST-END [RFC2946]
7 ENC_KEYID [RFC2946]
8 DEC_KEYID [RFC2946]
Type
0 NULL [RFC2946]
1 DES_CFB64 [RFC2946]
2 DES_OFB64 [RFC2946]
3 DES3_CFB64 [RFC2946]
4 DES3_OFB64 [RFC2946]
5-7 Unassigned [IANA]
8 CAST5_40_CFB64 [RFC2946]
9 CAST5_40_OFB64 [RFC2946]
10 CAST128_CFB64 [RFC2946]
11 CAST128_OFB64 [RFC2946]
In the DES3_CFB64 Telnet Encryption type there are a set of Suboption
Commands. Additions to the list are registerd by the IANA and
documented here.
Suboption Command Reference
1 CFB64_IV [RFC2947]
2 CFB64_IV_OK [RFC2947]
3 CFB64_IV_BAD [RFC2947]
In the DES3_OFB64 Telnet Encryption type there are a set of Suboption
Commands. Additions to the list are registerd by the IANA and
documented here.
Suboption Command Reference
1 OFB64_IV [RFC2948]
2 OFB64_IV_OK [RFC2948]
3 OFB64_IV_BAD [RFC2948]
In the CAST5_40_OFB64 and CAST128_OFB64 Telnet Encryption types, there
are a set of Suboption Commands. Additions to the list are registerd
by the IANA and documented here.
Suboption Command Reference
1 OFB64_IV [RFC2949]
2 OFB64_IV_OK [RFC2949]
3 OFB64_IV_BAD [RFC2949]
In the CAST5_40_CFB64 and CAST128_CFB64 Telnet Encryption types, there
are a set of Suboption Commands. Additions to the list are registerd
by the IANA and documented here.
Suboption Command Reference
1 CFB64_IV [RFC2950]
2 CFB64_IV_OK [RFC2950]
3 CFB64_IV_BAD [RFC2950]
In the DES_CFB64 Telnet Encryption type there are a set of Suboption
Commands. Additions to the list are registerd by the IANA and
documented here.
Suboption Command Reference
1 CFB64_IV [RFC2952]
2 CFB64_IV_OK [RFC2952]
3 CFB64_IV_BAD [RFC2952]
In the DES_OFB64 Telnet Encryption type there are a set of Suboption
Commands. Additions to the list are registerd by the IANA and
documented here.
Suboption Command Reference
1 OFB64_IV [RFC2953]
2 OFB64_IV_OK [RFC2953]
3 OFB64_IV_BAD [RFC2953]
REFERENCES
[ETHERNET] "The Ethernet, A Local Area Network: Data Link Layer and
Physical Layer Specification", AA-K759B-TK, Digital
Equipment Corporation, Maynard, MA. Also as: "The
Ethernet - A Local Area Network", Version 1.0, Digital
Equipment Corporation, Intel Corporation, Xerox
Corporation, September 1980. And: "The Ethernet, A Local
Area Network: Data Link Layer and Physical Layer
Specifications", Digital, Intel and Xerox, November 1982.
And: XEROX, "The Ethernet, A Local Area Network: Data Link
Layer and Physical Layer Specification", X3T51/80-50, Xerox
Corporation, Stamford, CT., October 1980.
[NIC50005] DDN Protocol Handbook, "Telnet Reconnection Option",
"Telnet Output Line Width Option", "Telnet Output Page Size
Option", NIC 50005, December 1985.
[RFC652] Crocker, D., "Telnet Output Carriage-Return Disposition
Option", RFC 652, UCLA-NMC, October 1974.
[RFC653] Crocker, D., "Telnet Output Horizontal Tabstops Option",
RFC 653, UCLA-NMC, October 1974.
[RFC654] Crocker, D., "Telnet Output Horizontal Tab Disposition
Option", RFC 654, UCLA-NMC, October 1974.
[RFC655] Crocker, D., "Telnet Output Formfeed Disposition Option",
RFC 655, UCLA-NMC, October 1974.
[RFC656] Crocker, D., "Telnet Output Vertical Tabstops Option",
RFC 656, UCLA-NMC, October 1974.
[RFC657] Crocker, D., "Telnet Output Vertical Tab Disposition Option",
RFC 657, UCLA-NMC, October 1974.
[RFC658] Crocker, D., "Telnet Output Linefeed Disposition", RFC 658,
UCLA-NMC, October 1974.
[RFC698] Tovar, "Telnet Extended ASCII Option", RFC 698, Stanford
University-AI, July 1975.
[RFC726] Postel, J. and D. Crocker, "Remote Controlled Transmission
and Echoing Telnet Option", RFC 726, SRI-ARC, UC Irvine,
March 1977.
[RFC727] Crispin, M., "Telnet Logout Option", RFC 727, Stanford
University-AI, April 1977.
[RFC734] Crispin, M., "SUPDUP Protocol", RFC 734, Stanford,
October 1977.
[RFC735] Crocker, D. and R. Gumpertz, "Revised Telnet Byte Marco
Option", RFC 735, Rand, CMU, November 1977.
[RFC736] Crispin, M., "Telnet SUPDUP Option", Stanford University-AI,
RFC 736, Stanford, October 1977.
[RFC749] Greenberg, B., "Telnet SUPDUP-OUTPUT Option", RFC 749,
MIT-Multics, September 1978.
[RFC779] Killian, E., "Telnet Send-Location Option", RFC 779,
LLL, April 1981.
[RFC856] Postel, J. and J. Reynolds, "Telnet Binary Transmission",
STD 27, RFC 856, USC/Information Sciences Institute, May
1983.
[RFC857] Postel, J. and J. Reynolds, "Telnet Echo Option", STD 28, RFC
857, USC/Information Sciences Institute, May 1983.
[RFC858] Postel, J. and J. Reynolds, "Telnet Suppress Go Ahead
Option", STD 29, RFC 858, USC/Information Sciences Institute,
May 1983.
[RFC859] Postel, J. and J. Reynolds, "Telnet Status Option", STD 30,
RFC 859, USC/Information Sciences Institute, May 1983.
[RFC860] Postel, J. and J. Reynolds, "Telnet Timing Mark Option",
STD 31, RFC 860, USC/Information Sciences Institute, May
1983.
[RFC861] Postel, J. and J. Reynolds, "Telnet Extended Options - List
Option", STD 32, RFC 861, USC/Information Sciences Institute,
May 1983.
[RFC885] Postel, J., "Telnet End of Record Option", RFC 885,
USC/Information Sciences Institute, December 1983.
[RFC927] Anderson, B., "TACACS User Identification Telnet Option",
RFC 927, BBN, December 1984.
[RFC933] Silverman, S., "Output Marking Telnet Option", RFC 933,
MITRE, January 1985.
[RFC946] Nedved, R., "Telnet Terminal Location Number Option",
RFC 946, Carnegie-Mellon University, May 1985.
[RDC1041] Rekhter, J., "Telnet 3270 Regime Option", RFC 1041,
IBM, January 1988.
[RFC1043] Yasuda, A., and T. Thompson, "TELNET Data Entry Terminal
Option DODIIS Implementation", RFC 1043, DIA, February 1988.
[RFC1053] Levy, S., and T. Jacobson, "Telnet X.3 PAD Option",
RFC 1053, Minnesota Supercomputer Center, April 1988.
[RFC1073] Waitzman, D., "Telnet Window Size Option", RFC 1073,
BBN STC, October, 1988.
[RFC1079] Hedrick, C., "Telnet Terminal Speed Option", RFC 1079,
Rutgers University, December 1988.
[RFC1091] VanBokkelen, J., "Telnet Terminal Type Option",
RFC 1091, FTP Software, Inc., February 1989.
[RFC1096] Marcy, G., "Telnet X Display Location Option", RFC 1096,
Carnegie Mellon University, March 1989.
[RFC1184] Borman, D., Editor, "Telnet Linemode Option",
RFC 1184, Cray Research, Inc., October 1990.
[RFC1372] Hedrick, C., and D. Borman, "Telnet Remote Flow Control
Option", RFC 1372, Rutgers University, Cray Research, Inc.,
October 1992.
[RFC1408] Borman, D., Editor, "Telnet Environment Option", RFC 1408,
Cray Research, Inc., January 1993.
[RFC1411] Borman, D., Editor, "Telnet Authentication: Kerberos
Version 4", RFC 1411, Cray Research, Inc., January 1993.
[RFC1416] Borman, D., Editor, "Telnet Authentication Option", RFC
1416, Cray Research, Inc., February 1993.
[RFC1572] Alexander, S., Editor, "Telnet Environment Option", RFC1572,
Lachman Technology, Inc., January 1994.
[RFC1647] Kelly, B., "TN3270 Enhancements", RFC1647, Auburn
University, July 1994.
[RFC2066] Gellens, R., "Telnet CharSet Option", RFC 2066, Unisys,
January 1997.
[RFC2217] Clark, G., "Telnet Com Port Control Option", RFC 2217,
Cisco Systems, Inc., October 1997.
[RFC2840] Altman, J., "Telnet Kermit Option", RFC 2840, May 2000.
[RFC2941] Ts'o, T. and J. Altman, "Telnet Authentication Option",
RFC 2941, September 2000.
[RFC2942] Ts'o, T., "Telnet Authentication: Kerberos Version 5",
RFC 2942, September 2000.
[RFC2943] Housley, R., Horting, T. and P. Yee, "TELNET Authentication
Using DSA", RFC 2943, September 2000.
[RFC2944] Wu, T., "Telnet Authentication: SRP", RFC 2944, September
2000.
[RFC2946] Ts'o, T., "Telnet Data Encryption Option", RFC 2946,
September 2000.
[RFC2947] Altman, J., "Telnet Encryption: DES3 64 bit Cipher
Feedback", RFC 2947, September 2000.
[RFC2948] Altman, J., "Telnet Encryption: DES3 64 bit Output
Feedback", RFC 2948, September 2000.
[RFC2949] Altman, J., "Telnet Encryption: CAST-128 64 bit Output
Feedback", RFC 2949, September 2000.
[RFC2950] Altman, J., "Telnet Encryption: CAST-128 64 bit Cipher
Feedback", September 2000.
[RFC2951] Housley, R., Horting, T. and P. Yee, "TELNET Authentication
Using KEA and SKIPJACK", September 2000.
[RFC2952] Ts'o, T., "Telnet Encryption: DES 64 bit Cipher Feedback",
RFC 2952, September 2000.
[RFC2953] Ts'o, T., "Telnet Encryption: DES 64 bit Output Feedback",
RFC 2953, September 2000.
PEOPLE
------
[Altman] Jeffrey Altman, <jaltman@watsun.cc.columbia.edu>, August
1998, January 2000.
[Atmar] Wirt Atmar, <atmar@aics-research.com>, June 1998.
[Barnes] Robert Barnes, <rab@stallion.oz.au>, July 1997.
[Boe] Michael Boe, <mboe@cisco.com>, June 1998.
[Brashear] Derrick Brashear, <shadow@dementia.org>, January 1995.
[Borman] Dave Borman, <dab@CRAY.COM>, January 1995.
[Croft] David Croft, <david@infotrek.co.uk>, September 1998.
[Earhart] Rob Earhart, <earhart+@CMU.EDU>, April 1995.
[Horting] Todd Horting <thorting@spyrus.com>, April 1998.
[Hudson] Tim Hudson <tjh@cryptsoft.com>, December 1998.
[IANA] Internet Assigned Numbers Authority, <iana@isi.edu>, January 1995.
[Kahn] Louis Kahn, <louisk@microsoft.com>, October 1998.
[McGregory] Steve McGregory <stevemc@pragmasys.com>, December 1998.
[Schoch] Steven Schoch, <schoch@sheba.arc.nasa.gov>, January 1995.
[Ts'o] Theodore Ts'o, <tytso@mit.edu>, September 1998.
[Wu] Thomas Wu, <tjw@stanford.edu>, July 1997, September 1998.
(last updated May 01 2001)
[]
|
