Strange network problem with Xen 4.0 on stable
Hi list.
I'm using Xen (long time ago), and I've a strange problem with one of
the DomU. It's the only DomU with this behaviour. It doesn't reply to
ping and can't have access to the net.
In detail:
Dom0 Debian stable:
Linux srv04 2.6.32-5-xen-amd64 #1 SMP Fri May 10 11:48:05 UTC 2013 x86_64 GNU/Linux
Working DomU:
Linux wiki 2.6.32-5-amd64 #1 SMP Fri May 10 08:43:19 UTC 2013 x86_64 GNU/Linux
Not working DomU:
Linux rh42g1 2.6.32-5-amd64 #1 SMP Fri May 10 11:48:05 UTC 2013 x86_64 GNU/Linux
Packets seems to be forwarded from Dom0 to DomU, but not from DomU to Dom0:
(srv04=Dom0, Xternal NIC=eth0)
root@srv04:~# tcpdump -n -i eth0 src 88.191.223.138 or dst 88.191.223.138
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
10:21:51.437722 IP 62.147.184.98 > 88.191.223.138: ICMP echo request, id 1448, seq 1, length 64
10:21:52.445622 IP 62.147.184.98 > 88.191.223.138: ICMP echo request, id 1448, seq 2, length 64
10:21:53.454046 IP 62.147.184.98 > 88.191.223.138: ICMP echo request, id 1448, seq 3, length 64
But packets from DomU to Dom0 seems to be sent to Dom0:
root@srv04:~# tcpdump -n -i vif114.0 src 88.191.223.138 or dst 88.191.223.138
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on vif114.0, link-type EN10MB (Ethernet), capture size 65535 bytes
10:22:13.224780 IP 62.147.184.98 > 88.191.223.138: ICMP echo request, id 1459, seq 1, length 64
10:22:13.224866 IP 88.191.223.138 > 62.147.184.98: ICMP echo reply, id 1459, seq 1, length 64
10:22:14.224020 IP 62.147.184.98 > 88.191.223.138: ICMP echo request, id 1459, seq 2, length 64
10:22:14.224114 IP 88.191.223.138 > 62.147.184.98: ICMP echo reply, id 1459, seq 2, length 64
10:22:18.223371 ARP, Request who-has 88.191.223.138 tell 88.191.108.41, length 28
10:22:18.223467 ARP, Reply 88.191.223.138 is-at 00:16:3e:6b:9e:3c, length 28
Routes are:
Dom0:
root@srv04:~# ip route
88.191.222.127 dev vif115.0 scope link src 88.191.108.41
88.191.223.138 dev vif114.0 scope link src 88.191.108.41
88.191.229.230 dev vif113.0 scope link src 88.191.108.41
88.191.226.108 dev vif116.0 scope link src 88.191.108.41
88.191.108.0/24 dev eth0 proto kernel scope link src 88.191.108.41
88.191.110.0/24 dev eth1 proto kernel scope link src 88.191.110.41
default via 88.191.110.1 dev eth1
default via 88.191.108.1 dev eth0
Working DomU:
88.191.229.0/24 dev eth0 proto kernel scope link src 88.191.229.230
default dev eth0 scope link
Not working DomU:
88.191.223.0/24 dev eth0 proto kernel scope link src 88.191.223.138
default dev eth0 scope link
Any ideas are welcome
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