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.

diff --git a/local.m4 b/local.m4
index 71c146f..f0e093d 100644 (file)
--- a/local.m4
+++ b/local.m4
@@ -72,8 +72,8 @@ defnet housebdry virtual
 ## House hosts.
 defhost radius
        hosttype router
-       iface eth0 dmz unsafe safe default
-       iface eth1 dmz unsafe safe default
+       iface eth0 dmz unsafe safe untrusted default
+       iface eth1 dmz unsafe safe untrusted default
        iface eth2 safe
        iface eth3 untrusted default
        iface t6-he default
@@ -90,8 +90,8 @@ defhost artist
        iface eth3 untrusted
 defhost vampire
        hosttype router
-       iface eth0.0 dmz unsafe safe
-       iface eth0.1 dmz unsafe safe
+       iface eth0.0 dmz unsafe untrusted safe
+       iface eth0.1 dmz unsafe untrusted safe
        iface eth0.2 safe
        iface eth0.3 untrusted
        iface dns0 iodine