http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=413
Summary: Networking on guest domain not working
Product: Xen
Version: unstable
Platform: All
OS/Version: Linux
Status: NEW
Severity: critical
Priority: P2
Component: Guest-OS
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: dbarrera@xxxxxxxxxx
The guest domain on an FC3 machine with today's build has a networking
problem--t is unable to access the network. The guest domain cannot be accessed
from the outside either, nor does it return a ping. This setup has worked
reliably previously, so it is unlikely a setup issue.
changeset: 7826:9bf6f907b3ff
tag: tip
user: kaf24@xxxxxxxxxxxxxxxxxxxx
date: Wed Nov 16 04:29:52 2005 +0100
summary: Trivial coding style fix.
I am curious as to why 'ifconfig -a' shows so many "veth's". The machine has
only one NIC.
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
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:123 errors:0 dropped:0 overruns:0 frame:0
TX packets:4587 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15900 (15.5 KiB) TX bytes:381001 (372.0 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)
vif1.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:137 errors:0 dropped:0 overruns:0 frame:0
TX packets:3947 errors:0 dropped:84 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5950 (5.8 KiB) TX bytes:281309 (274.7 KiB)
xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4462 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:251956 (246.0 KiB) TX bytes:0 (0.0 b)
[root@thinkcentre-dom0 xen-unstable.hg]# ip addr show
1: peth0: <BROADCAST,MULTICAST,NOARP,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
2: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
3: vif0.0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
4: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
link/ether 00:0d:60:f0:c5:c8 brd ff:ff:ff:ff:ff:ff
inet 9.53.41.163/24 brd 9.53.41.255 scope global eth0
5: vif0.1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
6: veth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
7: vif0.2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
8: veth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
9: vif0.3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
10: veth3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
11: vif0.4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
12: veth4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
13: vif0.5: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
14: veth5: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
15: vif0.6: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
16: veth6: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
17: vif0.7: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
18: veth7: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
19: xenbr0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
20: vif1.0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
[root@thinkcentre-dom0 xen-unstable.hg]# ip route show
9.53.41.0/24 dev eth0 proto kernel scope link src 9.53.41.163
169.254.0.0/16 dev eth0 scope link
default via 9.53.41.1 dev eth0
[root@thinkcentre-dom0 xen-unstable.hg]#
[root@thinkcentre-dom0 xen-unstable.hg]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
9.53.41.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
0.0.0.0 9.53.41.1 0.0.0.0 UG 0 0 0 eth0
[root@thinkcentre-dom0 xen-unstable.hg]#
[root@thinkcentre-dom0 xen-unstable.hg]# brctl show
bridge name bridge id STP enabled interfaces
xenbr0 8000.feffffffffff no peth0
vif0.0
vif1.0
[root@thinkcentre-dom0 xen-unstable.hg]#
dom0 dmesg output (tail):
e1000: eth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex
device vif0.0 entered promiscuous mode
bridge: can't decode speed from peth0: 65535
device peth0 entered promiscuous mode
xenbr0: port 1(vif0.0) entering learning state
xenbr0: topology change detected, propagating
xenbr0: port 1(vif0.0) entering forwarding state
e1000: peth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex
xenbr0: port 2(peth0) entering learning state
xenbr0: topology change detected, propagating
xenbr0: port 2(peth0) entering forwarding state
device vif1.0 entered promiscuous mode
xenbr0: port 3(vif1.0) entering learning state
xenbr0: topology change detected, propagating
xenbr0: port 3(vif1.0) entering forwarding state
---domU info---
thinkcentre-domU:~ # ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:16:3E:1A:8C:75
inet addr:9.53.94.114 Bcast:9.53.94.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5607 errors:0 dropped:0 overruns:0 frame:0
TX packets:137 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:399014 (389.6 Kb) TX bytes:5950 (5.8 Kb)
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:123 errors:0 dropped:0 overruns:0 frame:0
TX packets:123 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:12845 (12.5 Kb) TX bytes:12845 (12.5 Kb)
thinkcentre-domU:~ # netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
9.53.94.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 9.53.94.1 0.0.0.0 UG 0 0 0 eth0
thinkcentre-domU:~ #
pinging DOM0 from DOMU:
thinkcentre-domU:~ # ping 9.53.41.163
PING 9.53.41.163 (9.53.41.163) 56(84) bytes of data.
>From 9.53.94.114: icmp_seq=1 Destination Host Unreachable
>From 9.53.94.114 icmp_seq=1 Destination Host Unreachable
>From 9.53.94.114 icmp_seq=2 Destination Host Unreachable
>From 9.53.94.114 icmp_seq=3 Destination Host Unreachable
--- 9.53.41.163 ping statistics ---
6 packets transmitted, 0 received, +4 errors, 100% packet loss, time 5503ms
, pipe 3
thinkcentre-domU:~ #
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