Date: Tue, 05 Jun 2012 17:23:01 +0100
From: Bruce Cran <bruce@cran.org.uk>
To: freebsd-net@freebsd.org
Subject: Configuration problem with IPv6 router ("cannot forward src")
Message-ID: <4FCE3265.9080804@cran.org.uk>
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I'm trying to set up a IPv6 router (running -current) on my home network. My ISP gives me a /128 via PPP and I have a /48 allocation, which I use to give em0 and tun0 public addresses in different subnets (tun0 is assigned the address via ppp.linkup). I've added all the IPv6 settings to rc.conf (ipv6_gateway_enable, ipv6_network_interfaces, rtadvd_enable etc.) and I can ping IPv6 sites from the router. The problem is that rtadvd continues advertising the default gateway as tun0's link-local address - and pinging from a machine on the network results in "cannot forward src" messages on the router (strangely, despite hisaddr being fe80::205:... in ppp.log, the kernel logs the address as fe80:f::205:...). Is there some extra configuration I've likely missed that's needed when using IPv6 via PPP? -- Bruce Cran
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