[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] bridge + arp
By the way - We're not using the netloop driver, i.e. we only have eth0, br0 and the vifN with N>=1. What is the reason behind the vethN<->vif0.N thing? -----Original Message----- From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Moritz Möller Sent: Friday, September 19, 2008 8:59 PM To: xen-devel@xxxxxxxxxxxxxxxxxxx Subject: [Xen-devel] bridge + arp Hi, this is propably bridge related and not really a xen problem, but it might help someone: Some of our domUs are not able to arp. Arp -n show (incomplete), and doing a tcpdump shows, that on the dom0's eth0 the arp request goes out, the response comes in, but on the vifX.0 interface the arp response is gone. dom0# tcpdump -ni eth0 arp who-has 10.32.2.51 tell 10.32.7.70 arp reply 10.32.2.51 is-at 00:30:48:34:44:6c dom0# tcpdump -ni br0 arp who-has 10.32.2.51 tell 10.32.7.70 arp reply 10.32.2.51 is-at 00:30:48:34:44:6c dom0# tcpdump -ni vif3.0 arp who-has 10.32.2.51 tell 10.32.7.70 Does someone know why the dom0 br0 or vif eats the arp response? Thanks a lot, Moritz ip a l 1: lo: <LOOPBACK,UP,10000> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:30:48:34:13:dc brd ff:ff:ff:ff:ff:ff inet6 fe80::230:48ff:fe34:13dc/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000 link/ether 00:30:48:34:13:dd brd ff:ff:ff:ff:ff:ff 4: br0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc noqueue qlen 20000 link/ether 00:30:48:34:13:dc brd ff:ff:ff:ff:ff:ff inet 10.32.2.50/14 brd 10.35.255.255 scope global br0 inet6 fe80::230:48ff:fe34:13dc/64 scope link valid_lft forever preferred_lft forever 5: vif1.0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 32 link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff inet6 fe80::fcff:ffff:feff:ffff/64 scope link valid_lft forever preferred_lft forever 6: vif2.0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 32 link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff inet6 fe80::fcff:ffff:feff:ffff/64 scope link valid_lft forever preferred_lft forever 7: vif3.0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 32 link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff inet6 fe80::fcff:ffff:feff:ffff/64 scope link valid_lft forever preferred_lft forever brctl show bridge name bridge id STP enabled interfaces br0 8000.0030483413dc no eth0 vif1.0 vif2.0 vif3.0 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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