[Xen-devel] Networking problems with debian packages

[Christian Wicke <xen.christian@xxxxxxxxxxxxxxx>]

Hello,

my domain-0 loses it network when xend starts.
It uses a dhcp client on eth0 to receive its ip address (192.168.1.2). 

If I run 
$ dhclient xen-br0
$ /etc/init.d/networking restart

then I have the network, but route shows now two routes to 192.168.1.0:
$ LANG=EN route -n
Kernel IP routing table
Destination     Gateway        Genmask         Flags Metric Ref    Use Iface
192.168.1.0     0.0.0.0        255.255.255.0   U     0      0        0 xen-br0
192.168.1.0     0.0.0.0        255.255.255.0   U     0      0        0 eth0
0.0.0.0         192.168.1.1    0.0.0.0         UG    0      0        0 xen-br0

Does anyone know what is the correct way to make this work?


A second problem: I cannot ping to domU.

I think the problem is that there is no IP4-address assigned to to the vif 
interface. But assigning an ip address with ifconfig didn't help

Here is the output from ifconfig after I started my domU:
eth0      Link encap:Ethernet  HWaddr 00:00:E2:7D:84:FA
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::200:e2ff:fe7d:84fa/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:50 errors:0 dropped:0 overruns:0 frame:0
          TX packets:134 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4269 (4.1 KiB)  TX bytes:8874 (8.6 KiB)
          Interrupt:10 Base address:0x7000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2065 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2065 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:130380 (127.3 KiB)  TX bytes:130380 (127.3 KiB)

vif2.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:22 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1 errors:0 dropped:4 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:924 (924.0 b)  TX bytes:70 (70.0 b)

xen-br0   Link encap:Ethernet  HWaddr 00:00:E2:7D:84:FA
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:114 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:4497 (4.3 KiB)  TX bytes:378 (378.0 b)

I searched for both problems in the mailing list but couldn't find anything 
that helped me.

I attached the config for the domU.
My /etc/network/interfaces looks like this:
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
        address 192.168.5.2
        netmask 255.255.255.0
        network 192.168.5.0
        gateway 192.168.5.1

route on domU gave:
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.5.0     *               255.255.255.0   U     0      0        0 eth0
default         192.168.5.1     0.0.0.0         UG    0      0        0 eth0

ifconfig on domU gave
eth0      Link encap:Ethernet  HWaddr AA:00:00:03:C8:C3
          inet addr:192.168.5.2  Bcast:192.168.5.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1 errors:0 dropped:0 overruns:0 frame:0
          TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:70 (70.0 b)  TX bytes:2016 (1.9 KiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:16 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1368 (1.3 KiB)  TX bytes:1368 (1.3 KiB)

I use Adam Heath's latest (2.0.4-4) packages from 
http://people.debian.org/~doogie/packages/ on debian sarge

Thanks a lot for your help
Christian

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