Re: [Xen-devel] No route to localhost in virtual domains

[Ivan Peikov <vanio@xxxxxxxxxxxx>]

Hi again! 
Sorry for the first stupid question - while reading my email I saw that I 
didn't give 127.0.0.1 IP to lo interface.

Still the problem with domain0's network persists. Any help would be greatly 
appreciated!! Thanks again!

Regards,
Ivan Peikov

On Wednesday 23 February 2005 17:06, Ivan Peikov wrote:
> Hi!
> I'm running Xen 2.0.4 over patched 2.6.10 kernel and have problem with
> routing to loopback interface in virtual domains (can't ping 127.0.0.1).
> Here is how it looks:
>
> --------------
> root@vm1:/tmp# ifconfig
> eth0      Link encap:Ethernet  HWaddr AA:00:00:5F:BB:9C
>           inet addr:192.168.0.101  Bcast:192.168.0.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:171856 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:160196 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:37456710 (35.7 Mb)  TX bytes:51323199 (48.9 Mb)
>
> lo        Link encap:Local Loopback
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
>
> root@vm1:/tmp# route
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface 192.168.0.0     *               255.255.255.0   U     0      0       
> 0 eth0 default         rtr.bg.nc       0.0.0.0         UG    0      0      
>  0 eth0 --------------
>
> When I attempt to add the route manually I get this:
>
> --------------
> root@vm1:/tmp# /sbin/route add -net 127.0.0.0 netmask 255.0.0.0 lo
> SIOCADDRT: No such device
> --------------
>
> Routing through eth0 works fine.
> Should I somehow export the loopback interface to virtual domains and how?
>
> While still on the topic, I'd like to ask another (probably stupid)
> networking question.
> I still can't get the dom0's network running. When virtual machines get
> started and xen-br0 bridge gets up, the MAC address of my NIC gets
> associated with the bridge and no matter what I do, I can't route no
> packets to and from dom0's eth0 inteface. All the other virtual domains
> have no such problem. Any idea how do I solve this?
>
> Thanks!!
>
> Regards,
> Ivan Peikov
>
>
>
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