My setup (Ubuntu Maverick 10.10, kernel 2.6.35-22-server) is this: - eth0, eth1 bonded as bond0, active-backup. - vlan1000 on top of bond0 as bond0.1000. - br1000 bridge with bond0.1000 as interface. - vnet0 guest in br1000 bridge as well.
Looking at arp traffic outside and inside the guest: br1000 (in the host): 17:12:44.438727 52:54:00:07:9f:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Request who-has 1.2.3.4 tell 1.2.3.6, length 28 17:12:44.438782 52:54:00:07:9f:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Request who-has 1.2.3.4 tell 1.2.3.6, length 42 17:12:44.439324 52:54:00:6e:b0:df > 52:54:00:07:9f:19, ethertype ARP (0x0806), length 56: Reply 1.2.3.4 is-at 52:54:00:6e:b0:df, length 42 17:12:45.438718 52:54:00:07:9f:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Request who-has 1.2.3.4 tell 1.2.3.6, length 28 17:12:45.438778 52:54:00:07:9f:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Request who-has 1.2.3.4 tell 1.2.3.6, length 42 17:12:45.439261 52:54:00:6e:b0:df > 52:54:00:07:9f:19, ethertype ARP (0x0806), length 56: Reply 1.2.3.4 is-at 52:54:00:6e:b0:df, length 42 eth0 (the guest): 17:12:44.442208 52:54:00:07:9f:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Request who-has 1.2.3.4 tell 1.2.3.6, length 28 17:12:44.442717 52:54:00:07:9f:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Request who-has 1.2.3.4 tell 1.2.3.6, length 42 17:12:45.442204 52:54:00:07:9f:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Request who-has 1.2.3.4 tell 1.2.3.6, length 28 17:12:45.442721 52:54:00:07:9f:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Request who-has 1.2.3.4 tell 1.2.3.6, length 42 So the arp reply never makes it through to the guest for some reason effectively cutting off the guest from the network. -- Bridged Guests losing network connectivity https://bugs.launchpad.net/bugs/633392 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
