root@falcon:/etc/network# ifconfig
eth0 Link encap:Ethernet HWaddr 74:86:7a:ea:2e:e0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2617 errors:0 dropped:0 overruns:0 frame:0
TX packets:2311 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:623361 (608.7 KiB) TX bytes:683497 (667.4 KiB)
Interrupt:16
xenbr0 Link encap:Ethernet HWaddr 74:86:7a:ea:2e:e0
inet addr:192.168.0.254 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::7686:7aff:feea:2ee0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2548 errors:0 dropped:0 overruns:0 frame:0
TX packets:2325 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:558047 (544.9 KiB) TX bytes:670173 (654.4 KiB)
xenbr0:0 Link encap:Ethernet HWaddr 74:86:7a:ea:2e:e0
inet6 addr: fe80::5889:1bff:fe54:cd63/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:47 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:7174 (7.0 KiB)
ip does not appear. But the network does the ping