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Subject: [Bug 200379] SCTP stack is not FIB aware
Date: Wed, 17 Jun 2015 14:47:41 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379

--- Comment #15 from Alan Somers <asomers@FreeBSD.org> ---
(In reply to Michael Tuexen from comment #14)

You're right about the interface FIB.  It will take incoming packets with a
certain FIB.  But it's not completely general; it's possible to have outbound
traffic use multiple FIBs on a single interface.

The part about multihoming is more interesting.  Can you use SCTP to failover
from one ISP to another?  Different ISPs require different gateways, and hence
different routing tables.  In that case, a single fib per SCTP socket wouldn't
be sufficient.  We would need to set the FIB separately for each local IP
address of the SCTP socket.

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