Jon Schewe wrote: > I've got a setup with Xen using bridging. The host is OpenSUSE Linux, > the guest is NetBSD. I have a bridge named br0 that bridges eth0 (my > physical interface) and vif22.0 (the interface for the NetBSD guest). My > NetBSD guest sends out an IPv6 packet. If I tcpdump on the network > interface inside the guest, I see the packet go out. If I tcpdump on > vif22.0 I see the packet, if I tcpdump on br0 I see the packet. If I > tcpdump on eth0 I don't see the packet. This means the packet isn't > going on the wire and it should. This all works fine with IPv4. Have you enabled IPv6 *completely* in the host kernel? Does the following return anything? % ifconfig eth0 | grep inet6 Is this output informative? % grep -E 'I(P|PV|NET)6' /boot/config-`uname -r` Kernel modules to consider: ip6tables (for module names like ip6t_*) iptunnel6 ipv6 nf_conntrack_ipv6 sit Packages to consider for convenience (not required to get IPv6 pkts on eth0, names from Debian): ipv6calc ndisc6 netcat6 oping radvd rdisc6 sipcalc traceroute ucspi-tcp-ipv6 wireshark HTH, --Tom