[Xen-devel] Xen networking Issue

Hi,

I am trying to install Xen 3.0.2 on a x86_64 platform in Redhat Enterprise Version. My guest OS is a Debian based system. Everything goes well, but the networking doesnt work.

1. The domU is never seeing eth0

2. I use a dhcp connection for my dom0 and domU

3. Initially dom0 can connect to outside world

4. But, when I launch a domU, the network connectivity from dom0 to outside world is also gone.

Any help is appreciated.

Thanks,

Vaddadi

When I try to say xend start and do a ifconfig -a on the dom0 I get the following:

[root@dmz03 scripts]# ifconfig -a
eth0      Link encap:Ethernet HWaddr 00:A0:D1:E1:DD:8E
          inet addr:160.91.40.231 Bcast:160.91.43.255 Mask:255.255.252.0
          inet6 addr: fe80::2a0:d1ff:fee1:dd8e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:3356 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1478 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:262855 (256.6 KiB) TX bytes:230218 (224.8 KiB)

eth1      Link encap:Ethernet HWaddr 00:A0:D1:E1:DD:8F
          BROADCAST MULTICAST MTU:1500 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:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Interrupt:19

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:2256 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2256 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2743808 (2.6 MiB) TX bytes:2743808 ( 2.6 MiB)

peth0     Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1
          RX packets:4058 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1435 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:350910 (342.6 KiB) TX bytes:230412 (225.0 KiB)
          Interrupt:18

sit0      Link encap:IPv6-in-IPv4
          NOARP MTU:1480 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)

veth1     Link encap:Ethernet HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST MTU:1500 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)

veth2     Link encap:Ethernet HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST MTU:1500 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)

veth3     Link encap:Ethernet HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST MTU:1500 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)

veth4     Link encap:Ethernet HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST MTU:1500 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)

veth5     Link encap:Ethernet HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST MTU:1500 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)

veth6     Link encap:Ethernet HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST MTU:1500 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)

veth7     Link encap:Ethernet HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST MTU:1500 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)

vif0.0    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:1508 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3376 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:237558 (231.9 KiB) TX bytes:264087 (257.8 KiB)

vif0.1    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          BROADCAST MULTICAST MTU:1500 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)

vif0.2    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          BROADCAST MULTICAST MTU:1500 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)

vif0.3    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          BROADCAST MULTICAST MTU:1500 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)

vif0.4    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          BROADCAST MULTICAST MTU:1500 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)

vif0.5    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          BROADCAST MULTICAST MTU:1500 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)

vif0.6    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          BROADCAST MULTICAST MTU:1500 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)

vif0.7    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          BROADCAST MULTICAST MTU:1500 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)

xenbr0    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:2403 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:171182 (167.1 KiB) TX bytes:468 (468.0 b)

When I do an ifconfig -a on the domU it gives the following:

(none):~# ifconfig -a
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: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)

veth0     Link encap:Ethernet HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST MTU:1500 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)

vif0.0    Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
          BROADCAST MULTICAST MTU:1500 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)

My domU configuration file

name ="vm01"
kernel ="/boot/vmlinuz-2.6.16-xen"
root ="/dev/hda1"
memory =256
disk = ['file:/vserver/images/vm01.img,hda1,w','file:/vserver/images/vm01-swap.img,hda2,w']

# network
#nics=1
#dhcp ="off"
#ip="192.168.0.101"
#netmask="255.255.255.00
#gateway=" 192.168.0.1"
dhcp="dhcp"
#hostname="vm01.xipc.com"
extra="4"
#vif = [mac=00:06:AA:F6:BB:B3]

My domU /etc/network/interfaces file

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0

auto eth0
iface eth0 inet dhcp

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[Xen-devel] Xen networking Issue