Xen Networking Problem

[Jumpy]

Hey all, I'm hoping someone can help me out with this Xen problem. When I start up Xen my xen-br0 has the same IP address as eth0, however peth0 has no address. How is it supposed to be. Isn't peth0 supposed to have the same address as the bridge? And once inside the dom1 I've created, how do I set up the interfaces. Can I just assign it any address with 192.168.1.0/24?

[root@BooYah xen]# uname -a
Linux BooYah.blah.com 2.6.12-1.1454_FC4xen0 #1 SMP Fri Sep 9 00:19:20 EDT 2005 i686 i686 i386 GNU/Linux

[root@BooYah xen]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:13:D4:22:39:A6
inet addr:192.168.1.205 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::213:d4ff:fe22:39a6/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:860 errors:0 dropped:0 overruns:0 frame:0
TX packets:195 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:91465 (89.3 KiB) TX bytes:27028 (26.3 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:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:560 (560.0 b) TX bytes:560 (560.0 b)

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:1026 errors:0 dropped:0 overruns:0 frame:0
TX packets:352 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:107314 (104.7 KiB) TX bytes:54214 (52.9 KiB)
Base address:0xd800 Memory:cffe0000-d0000000

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:195 errors:0 dropped:0 overruns:0 frame:0
TX packets:869 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:27028 (26.3 KiB) TX bytes:93747 (91.5 KiB)

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 MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:157 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

xen-br0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet addr:192.168.1.205 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:739 errors:0 dropped:0 overruns:0 frame:0
TX packets:152 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:60417 (59.0 KiB) TX bytes:27032 (26.3 KiB)

If you need any more information, please let me know.

[jarifed]

This is my ifconfig fedora f5 test1
It is normal for the bridge to have the same ip address
vif 0:0 is the the first virtual interface domain 0
vif 1:0 is the first virtual interface domain 1


You might also have a look at these links to obtain domU Images instead of creating one

http://www.xen-get.org/

http://jailtime.org/download:fedora:fc4

these have been prepared to be used as domU

jarifed

ifconfig
eth0 Link encap:Ethernet HWaddr 00:30:BD:2A:C6:E8
inet addr:192.168.1.139 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::230:bdff:fe2a:c6e8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9 errors:0 dropped:0 overruns:0 frame:0
TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:887 (887.0 b) TX bytes:4165 (4.0 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:131 errors:0 dropped:0 overruns:0 frame:0
TX packets:131 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9777 (9.5 KiB) TX bytes:9777 (9.5 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 MULTICAST MTU:1500 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:94 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1740 (1.6 KiB) TX bytes:11453 (11.1 KiB)
Interrupt:11 Base address:0xd800

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:32 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4165 (4.0 KiB) TX bytes:977 (977.0 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:33 errors:0 dropped:0 overruns:0 frame:0
TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4002 (3.9 KiB) TX bytes:378 (378.0 b)

also have a look at the command brctl
commands:
addbr <bridge> add bridge
delbr <bridge> delete bridge
addif <bridge> <device> add interface to bridge
delif <bridge> <device> delete interface from bridge
setageing <bridge> <time> set ageing time
setbridgeprio <bridge> <prio> set bridge priority
setfd <bridge> <time> set bridge forward delay
sethello <bridge> <time> set hello time
setmaxage <bridge> <time> set max message age
setpathcost <bridge> <port> <cost> set path cost
setportprio <bridge> <port> <prio> set port priority
show show a list of bridges
showmacs <bridge> show a list of mac addrs
showstp <bridge> show bridge stp info
stp <bridge> <state> turn stp on/off

see sample below
brctl showstp xenbr0
xenbr0
bridge id 8000.feffffffffff
designated root 8000.feffffffffff
root port 0 path cost 0
max age 20.00 bridge max age 20.00
hello time 2.00 bridge hello time 2.00
forward delay 0.00 bridge forward delay 0.00
ageing time 300.00
hello timer 1.05 tcn timer 0.00
topology change timer 0.00 gc timer 0.01
flags


peth0 (2)
port id 8002 state forwarding
designated root 8000.feffffffffff path cost 19
designated bridge 8000.feffffffffff message age timer 0.00
designated port 8002 forward delay timer 0.00
designated cost 0 hold timer 0.02
flags

vif0.0 (1)
port id 8001 state forwarding
designated root 8000.feffffffffff path cost 100
designated bridge 8000.feffffffffff message age timer 0.00
designated port 8001 forward delay timer 0.00
designated cost 0 hold timer 0.01
flags

[Jumpy]

Nice thanks for the help I got it working now.

Playing with the max-mem values somehow got it working right.

xm mem-max 0 1000
xm mem-set 0 1000

I also had to stop iptables, stop xend, start xend to get it to work.