[Xen-users] Server moved - networking stopped
This is all on SuSE enterprise 10
Our server was moved to a new location last night. After powerup there
was no sign of networking so our ISP reconfigured the box. Outbound
connectivity had previously been through eth1 but is now through eth0
Since restarting Xen I now have no network connectivity through the hosts.
I have tried to provide all the relevant details below. If anyone has
a moment to take a look and offer a suggestion as to why my networking
may be down, I'd love to hear it. Thanks.
Our configuration is as follows.
eth0 Link encap:Ethernet HWaddr 00:1A:A0:05:7E:F9
inet addr:220.127.116.11 Bcast:18.104.22.168 Mask:255.255.255.0
We have 22.214.171.124/29 routed through that IP
At the command prompt I did
# modprobe dummy
# ifconfig dummy0 126.96.36.199 netmask 255.255.255.248 up
That gives me:
dummy0 Link encap:Ethernet HWaddr 26:65:C6:05:99:96
inet addr:188.8.131.52 Bcast:184.108.40.206 Mask:255.255.255.248
Which looks okay.
I restart xen:
# rcxend restart
And my bridge appears:
xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet addr:220.127.116.11 Bcast:0.0.0.0 Mask:255.255.255.248
starting a machine makes a vif appear too:
vif3.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
The networking part of xend-config.sxp looks like this:
(network-script 'network-virtual bridgeip="18.104.22.168/29"
The variables section in network virtual are:
I'm not aware of any changes to the vif-bridge script
I am unable to ping the vm from dom0
>From an external host I can ping the bridge IP
Traceroutes from an external host to 22.214.171.124 do not receive a
reply from the bridge IP. I'm unsure if they should.
Traceroutes to 126.96.36.199 (the bridge ip itself) do receive a reply.
The only vm config for networking is:
vif = [ 'mac=00:16:3e:9a:d4:33' ]
Where the MAC address is changed in each vm script.
As I say, this config worked until yesterday, My only change today
was in xend-config.sxp changing eth1 to eth0
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