From: Mark Wooding <mdw@distorted.org.uk>
Date: Mon, 23 Apr 2012 00:20:28 +0000 (+0100)
Subject: local.m4: Untrusted source addresses appear on the backbone.
X-Git-Url: https://git.distorted.org.uk/~mdw/firewall/commitdiff_plain/c353339c5f8e4afececd952fbebb09109b55dca1?hp=c353339c5f8e4afececd952fbebb09109b55dca1

local.m4: Untrusted source addresses appear on the backbone.

This happens because of router redundancy.  Case in point: suppose
vampire is selected via IPv6 router discovery, but radius owns the
external tunnel.  Then vampire will forward the packet over the
backbone to radius, which mustn't reject it.

(This isn't a security problem because the untrusted network isn't (by
definition) trusted very much for anything.
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