[Xen-users] Re: CentOS routing table gone

["Christoph Koehler" <christoph.koehler@xxxxxxxxx>]

Any ideas why the default gateway disappears on reboot? Should I try
reinstalling Xen?

Any help at all is really appreciated.

Christoph


On 9/11/06, Christoph Koehler <christoph.koehler@xxxxxxxxx> wrote:
> Hello all,
>
> I tried to install Xen on my CentOS server, and everything seems to go
> right, but once I reboot, there is no default gateway for my network
> connections, so I cannot connect in or out. That is all on dom0.
>
> I spent about two hours in the centos channel to get this sorted out,
> and all the scripts seem to be okay.
> Note that the last line from netstat -rn was manually added via KVM by
> me, so it doesn't appear when the system is rebooted.
>
> Here is the output for netstat -rn ; ifconfig eth0 ; ifconfig eth1 ;
> cat /etc/sysconfig/network ; cat
> /etc/sysconfig/network-scripts/ifcfg-eth0 ; cat
> /etc/sysconfig/network-scripts/ifcfg-eth1
>
>
> [root@dhcp-123 xen]# netstat -rn ; ifconfig eth0 ; ifconfig eth1 ; cat
> /etc/sysconfig/network ; cat /etc/sysconfig/network-scripts/ifcfg-eth0
> ; cat /etc/sysconfig/network-scripts/ifcfg-eth1
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
> 10.0.0.0        0.0.0.0         255.255.255.0   U         0 0          0 eth1
> 64.182.165.0    0.0.0.0         255.255.255.0   U         0 0          0 eth0
> 169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth1
> 0.0.0.0         64.182.165.1    0.0.0.0         UG        0 0          0 eth0
> eth0      Link encap:Ethernet  HWaddr 00:E0:81:5D:C4:E4
>           inet addr:64.182.165.190  Bcast:64.182.165.255  Mask:255.255.255.0
>           inet6 addr: fe80::2e0:81ff:fe5d:c4e4/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:3028 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:171 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:207927 (203.0 KiB)  TX bytes:27973 (27.3 KiB)
>
> eth1      Link encap:Ethernet  HWaddr 00:E0:81:5D:C4:E3
>           inet addr:10.0.0.1  Bcast:10.0.0.255  Mask:255.255.255.0
>           inet6 addr: fe80::2e0:81ff:fe5d:c4e3/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:2365 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:149737 (146.2 KiB)  TX bytes:678 (678.0 b)
>           Interrupt:20 Base address:0x6000
>
> NETWORKING=yes
> HOSTNAME=dhcp-123.installer.lan
> GATEWAY=64.182.165.1
> DEVICE=eth0
> ONBOOT=yes
> BOOTPROTO=static
> IPADDR=64.182.165.190
> NETMASK=255.255.255.0
> DEVICE=eth1
> ONBOOT=yes
> BOOTPROTO=static
> IPADDR=10.0.0.1
> NETMASK=255.255.255.0
>
> Do you guys have any ideas?
>
> Thanks!
>
> Christoph
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