Re: [Xen-users] Interesting networking problem (network is unreachable)

["Morten W. Petersen" <morten@xxxxxxxxxxxxxx>]

Martin Hierling wrote:
> Hi,
>
>     I don't get any error messages now when using ping, but
>     I don't get any responses either. 
>
> but at least your network is up ;-)
Hehe, yep.  :)

>     If I configure the guest with IP 83.143.83.193
>     <http://83.143.83.193> and netmask
>     255.255.255.0 <http://255.255.255.0> and the routes
>
>     83.143.83.0 <http://83.143.83.0>     *               255.255.255.0
>     <http://255.255.255.0>   U     0      0        0 eth0
>     default         83.143.83.121 <http://83.143.83.121>   0.0.0.0
>     <http://0.0.0.0>         UG    0      0        0 eth0
>
>     ping just waits:
>
>     kshetra:~# ping 83.143.86.11 <http://83.143.86.11>
>     PING 83.143.86.11 <http://83.143.86.11> (83.143.86.11
>     <http://83.143.86.11>) 56(84) bytes of data.
>
>
>
> can you  ping your default router? Perhaps  there is a firewall 
> blocking your ping on the way to your target?
> btw: i can ping your ip 83.143.83.193 <http://83.143.83.193> (now) but 
> another weird thing it that pinging the 191 ip i got response from 161??
>  $ ping 83.143.83.191 <http://83.143.83.191>
> PING 83.143.83.191 <http://83.143.83.191> (83.143.83.191 
> <http://83.143.83.191>) 56(84) bytes of data.
> 64 bytes from 83.143.83.161 <http://83.143.83.161>: icmp_seq=1 ttl=114 
> time= 62.9 ms
> 64 bytes from 83.143.83.161 <http://83.143.83.161>: icmp_seq=2 ttl=114 
> time=63.1 ms
Well, we don't use the IPs 191 and 161 so I don't know what's
going on there.

But, it is working now!

I had to use network-route and vif-route instead, and then use
a dummy network driver in the host domain.

Alsohad to change the netmask to 255.255.255.248, and
set the IP-address in the Xen configuration file.

Man, I'm happy this is done.

Thanks for your help!  :)

-Morten

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