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UNSUPPORTED OPTIONS
===================
Options listed in this section have been removed from OpenVPN and are no
longer supported
--client-cert-not-required
Removed in OpenVPN 2.5. This should be replaxed with
``--verify-client-cert none``.
--ifconfig-pool-linear
Removed in OpenVPN 2.5. This should be replaced with ``--topology p2p``.
--key-method
Removed in OpenVPN 2.5. This option should not be used, as using the old
``key-method`` weakens the VPN tunnel security. The old ``key-method``
was also only needed when the remote side was older than OpenVPN 2.0.
--management-client-pf
Removed in OpenVPN 2.6. The built-in packet filtering (pf) functionality
has been removed.
--ncp-disable
Removed in OpenVPN 2.6. This option mainly served a role as debug option
when NCP was first introduced. It should no longer be necessary.
--no-iv
Removed in OpenVPN 2.5. This option should not be used as it weakens the
VPN tunnel security. This has been a NOOP option since OpenVPN 2.4.
--no-replay
Removed in OpenVPN 2.5. This option should not be used as it weakens the
VPN tunnel security.
--ns-cert-type
Removed in OpenVPN 2.5. The ``nsCertType`` field is no longer supported
in recent SSL/TLS libraries. If your certificates does not include *key
usage* and *extended key usage* fields, they must be upgraded and the
``--remote-cert-tls`` option should be used instead.
--prng
Removed in OpenVPN 2.6. We now always use the PRNG of the SSL library.
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