Hi folks-- Can anyone tell me if I should be able to run IPv6 over an if_bridge interface?
I'm running RELENG_6 from a few days ago on a Soekris net4801 and have created a bridge0 interface with two of the physical network interfaces (sis0 and sis1) as members. IPv4 seems to work fine over this; I can assign an IPv4 address to bridge0 and everything seems normal. If I assign an IPv6 address to the interface, no IPv6 packets seem to go in or out, and ping6-ing a machine on the same subnet yields: hornet# ping6 other_address PING6(56=40+8+8 nbytes) (net4801_address) --> (other_address) _storelladdr: something odd happens ping6: sendmsg: Invalid argument ping6: wrote tomcat.kitchenlab.org 16 chars, ret=-1 nd6_storelladdr: something odd happens Note that the output above is slightly mangled; I wonder if this has to do with some buffer related to the net4801's serial console being overrun. Anyways. tcpdump-ing in various places shows that ICMPv6 neighbor solicitation packets aren't leaving the net4801. If I try to ping the net4801 from other machines on the subnet, I can see *their* neighbor solicitation packets arrive at the net4801 with tcpdump, but it never (as far as I can tell) sends a response. I wonder if this has to do with IPv6 ND packets being sent as multicast, but that's just a guess. Googling showed that at least on NetBSD 1.6, this didn't work, but I wasn't able to find anything immediately applicable to FreeBSD 6.0-BETA3. :-) Any ideas? Thanks! Bruce.
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