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xen-users
[Xen-users] dom0 networking disabled
Hi folks, I've been trying to work out this situation for a few days now
without much success and dug all over the archives for similar issues,
none of which seem to relate exactly.
I installed Debian Etch and the Xen (3.03) kernels / binaries on a Dell
server. It works fantastic with all the default configurations with one
strange flaw - as soon as the /etc/xen/scripts/network-bridge script runs,
dom0 loses all network connectivity. It is no longer possible to ping in
or out of the IP for the machine, and it throws no errors, just sits on a
blinking prompt.
I have 4 domU machines running on 4 different IPs and they all work
perfectly, with perfect connectivity. All the default configuration files
seem correct, and there are no firewall problems that I can see. Nothing
gets in or out of dom0, though, from anywhere. Running
'/etc/xen/scripts/network-bridge stop' will return eth0 to its former
state and everything starts working again.
So either I'm missing something very obvious, or something is very wrong -
I've attached several readouts below, but let me know if any other info
would be helpful in solving this thing, its had us stumped and seems to be
the only thing keeping us from putting this box into production.
Thanks for any insight,
Kirk
***** XEND-CONFIG *****
(network-script network-bridge)
(vif-script vif-bridge)
(dom0-min-mem 196)
(dom0-cpus 0)
***** IFCONFIG AFTER NETWORK-BRIDGE *****
eth0 Link encap:Ethernet HWaddr 00:18:8B:30:42:1A
inet addr:146.6.135.253 Bcast:146.6.135.255 Mask:255.255.255.0
inet6 addr: fe80::218:8bff:fe30:421a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:428106 errors:0 dropped:0 overruns:0 frame:0
TX packets:954 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:90445670 (86.2 MiB) TX bytes:51940 (50.7 KiB)
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:84 errors:0 dropped:0 overruns:0 frame:0
TX packets:84 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7619 (7.4 KiB) TX bytes:7619 (7.4 KiB)
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 MTU:1500 Metric:1
RX packets:1511699 errors:0 dropped:0 overruns:0 frame:0
TX packets:357092 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:203990694 (194.5 MiB) TX bytes:52150776 (49.7 MiB)
Interrupt:16 Memory:f4000000-f4011100
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 NOARP MTU:1500 Metric:1
RX packets:954 errors:0 dropped:0 overruns:0 frame:0
TX packets:428106 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:51940 (50.7 KiB) TX bytes:90445670 (86.2 MiB)
vif1.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:64258 errors:0 dropped:0 overruns:0 frame:0
TX packets:562648 errors:0 dropped:115 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4142652 (3.9 MiB) TX bytes:593022036 (565.5 MiB)
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 NOARP MTU:1500 Metric:1
RX packets:898 errors:0 dropped:0 overruns:0 frame:0
TX packets:429185 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:108700 (106.1 KiB) TX bytes:90550180 (86.3 MiB)
vif3.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:875 errors:0 dropped:0 overruns:0 frame:0
TX packets:429167 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:107225 (104.7 KiB) TX bytes:90548619 (86.3 MiB)
vif6.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:288128 errors:0 dropped:0 overruns:0 frame:0
TX packets:724502 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:520109227 (496.0 MiB) TX bytes:96161833 (91.7 MiB)
xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:424744 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:83800426 (79.9 MiB) TX bytes:0 (0.0 b)
***** BRIDGE STATUS *****
bridge name bridge id STP enabled interfaces
xenbr0 8000.feffffffffff no
vif0.0
peth0
vif1.0
vif2.0
vif3.0
vif6.0
***** IP TABLES ON DOM0 *****
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT 0 -- 0.0.0.0/0 0.0.0.0/0 PHYSDEV match
--physdev-in vif1.0
ACCEPT 0 -- 0.0.0.0/0 0.0.0.0/0 PHYSDEV match
--physdev-in vif2.0
ACCEPT 0 -- 0.0.0.0/0 0.0.0.0/0 PHYSDEV match
--physdev-in vif3.0
ACCEPT 0 -- 0.0.0.0/0 0.0.0.0/0 PHYSDEV match
--physdev-in vif6.0
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
***** WORKING DOMU CONFIG *****
kernel = '/boot/vmlinuz-2.6.18-4-xen-vserver-686'
ramdisk = '/boot/initrd.img-2.6.18-4-xen-vserver-686'
memory = '256'
root = '/dev/sda1 ro'
disk = [ 'file:/xenservers/domains/xentest1/disk.img,sda1,w',
'file:/xenservers/domains/xentest1/swap.img,sda2,w' ]
name = 'xentest1'
dhcp = 'dhcp'
vif = [ 'mac=00:16:3E:44:43:99' ]
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
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