Tomasz Chmielewski
2006-Jun-13 12:26 UTC
[Xen-users] arping between two xen0 works, ping doesn''t (not checksum issue)
I have two Xen 3.0.2 domains, both are using network-bridge, both servers are in the same network. dom0_A, domU_A - first Xen server (dom0 and domU) dom0_B, domU_B - first Xen server (dom0 and domU) I cannot ping or connect from one dom0_A to dom0_B nor domU_B. arping works fine though. I can ping and connect from domU_A to dom0_B and domU_B, though. I have changed xen-3.0.2-2/linux-2.6-xen-sparse/drivers/xen/netback/interface.c to fix the checksum problem. The other thing I changed in /etc/xen/scripts/network-bridge on one Xen server was to change the MAC address of the bridge to fa:ff:ff:ff:ff:ff, - without this, two Xen servers had the same MAC address of the bridge (fe:ff:ff:ff:ff:ff), which made communication between two Xen domains impossible. Anyone can help? -- Tomasz Chmielewski http://wpkg.org _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Tomasz Chmielewski
2006-Jun-13 12:35 UTC
Re: [Xen-users] arping between two xen0 works, ping doesn''t (not checksum issue)
Tomasz Chmielewski wrote:> I have two Xen 3.0.2 domains, both are using network-bridge, both > servers are in the same network. > > dom0_A, domU_A - first Xen server (dom0 and domU) > dom0_B, domU_B - first Xen server (dom0 and domU) > > I cannot ping or connect from one dom0_A to dom0_B nor domU_B. arping > works fine though. > > I can ping and connect from domU_A to dom0_B and domU_B, though. > > > I have changed > xen-3.0.2-2/linux-2.6-xen-sparse/drivers/xen/netback/interface.c to fix > the checksum problem. > > The other thing I changed in /etc/xen/scripts/network-bridge on one Xen > server was to change the MAC address of the bridge to fa:ff:ff:ff:ff:ff, > - without this, two Xen servers had the same MAC address of the bridge > (fe:ff:ff:ff:ff:ff), which made communication between two Xen domains > impossible.A quick answer to myself: I changed the MAC of the bridge of the other server, too, to fc:ff:ff:ff:ff:ff (in /etc/xen/scripts/network-bridge), and now I can connect both ways, so the problem is solved. There should be some info on this in the documentation IMHO. -- Tomasz Chmielewski Software deployment with Samba http://wpkg.org _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
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