Date: Fri, 08 Jun 2012 09:39:32 -0600 From: Brandon Weisz <lists@avioc.org> To: Bruce Cran <bruce@cran.org.uk> Cc: freebsd-questions@freebsd.org Subject: Re: Configuration problem with IPv6 router ("cannot forward src") Message-ID: <4FD21CB4.1030002@avioc.org> In-Reply-To: <4FD12CFF.6020205@cran.org.uk> References: <4FD12CFF.6020205@cran.org.uk>
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Make sure you are only advertising a /64 addr prefixlen in rtadvd.conf, and not the entire /48. On 6/7/2012 4:36 PM, Bruce Cran wrote: > 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? >
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