On Wed, 16 Aug 2023 06:35:01 +0000 (UTC), Jason Long via Openvpn-users
<openvpn-users@lists.sourceforge.net> wrote:
>
>I added the following lines to my server.conf:
>
>client-config-dir myclient
>ccd-exclusive
>route 192.168.1.0 255.255.255.0
>multihome
>
>From the reference manual:
multihome
Configure a multi-homed UDP server. This option needs to be used when a
server has more than one IP address (e.g. multiple interfaces, or secondary IP
addresses), and is not using --local to force binding to one specific address
only. This option will add some extra lookups to the packet path to ensure that
the UDP reply packets are always sent from the address that the client is
talking to. This is not supported on all platforms, and it adds more processing,
so it's not enabled by default.Note: this option is only relevant for UDP
servers.
Note 2: if you do an IPv6+IPv4 dual-stack bind on a Linux machine with
multiple IPv4 address, connections to IPv4 addresses will not work right on
kernels before 3.15, due to missing kernel support for the IPv4-mapped case
(some distributions have ported this to earlier kernel versions, though).
--
Bo Berglund
Developer in Sweden
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