| View previous topic :: View next topic |
| Author |
Message |
newtonian
Guru
Joined: 19 Jan 2005
Posts: 465
Location: Hokkaido Japan
|
 Posted: Wed Aug 13, 2008 12:43 am Post subject: setting up gentoo xen dom0 with multiple bridges [solved] |
 |
|
Hi-
I'm trying to setup a xen server with 2 bridges. Anyone have a conf.d/net that creates 2 bridges from 2 physical nics?
Here's my current config. It works to setup xenbr0 great. The 2nd bridge doesn't start up. Any sample configs or links to gentoo specific xen mulitple bridge docs or advice on how to get the script below to work would be appreciated:
| Code: | #dns_domain_eth0="mydomain.com"
#
config_eth0=(
"210.48.123.123 netmask 255.255.255.192 brd 210.48.123.255"
)
config_eth1=(
"192.168.0.1 netmask 255.255.255.0 brd 192.168.0.255"
)
dns_servers_eth0="210.48.123.3 210.48.123.2"
#
routes_eth0=(
"default via 210.48.123.1" # IPv4 default route
)
bridge_xenbr0="eth0"
brctl_xenbr0=(
"setfd 0"
"sethello 0"
"stp off"
)
#
config_xenbr0=(
"210.48.123.123 netmask 255.255.255.192"
)
routes_xenbr0=( "default via 210.48.123.1" )
bridge_xenbr1="eth1"
brctl_xenbr1=(
"setfd 0"
"sethello 0"
"stp off"
)
#
config_xenbr1=(
"192.168.0.1 netmask 255.255.255.255"
)
routes_xenbr1=( "default via 192.168.0.1" )
|
| Code: | shark scripts # /etc/xen/scripts/network-bridge status
============================================================
13: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
link/ether 00:15:13:54:32:74 brd ff:ff:ff:ff:ff:ff
inet 210.48.255.51/26 brd 210.48.255.255 scope global eth0
13: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
link/ether 00:15:13:54:35:74 brd ff:ff:ff:ff:ff:ff
inet 210.48.255.51/26 brd 210.48.255.255 scope global eth0
bridge name bridge id STP enabled interfaces
eth0 8000.001517543174 no peth0
210.48.123.0/26 dev eth0 proto kernel scope link src 210.48.123.123
127.0.0.0/8 dev lo scope link
default via 210.48.123.1 dev eth0
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
210.48.255.0 0.0.0.0 255.255.255.192 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 210.48.123.1 0.0.0.0 UG 0 0 0 eth0
============================================================ |
| Code: | shark scripts # ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:17:11:11:74
inet addr:210.48.123.123 Bcast:210.48.123.255 Mask:255.255.255.192
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:25406 errors:0 dropped:0 overruns:0 frame:0
TX packets:13173 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:19944443 (19.0 Mb) TX bytes:2150992 (2.0 Mb)
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:56 errors:0 dropped:0 overruns:0 frame:0
TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4340 (4.2 Kb) TX bytes:4340 (4.2 Kb)
peth0 Link encap:Ethernet HWaddr 00:15:17:11:11:74
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:25412 errors:0 dropped:0 overruns:0 frame:0
TX packets:13175 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:20402417 (19.4 Mb) TX bytes:2207442 (2.1 Mb)
Base address:0x2020 Memory:b8820000-b8840000
|
Last edited by newtonian on Fri Aug 15, 2008 9:34 am; edited 2 times in total |
|
| Back to top |
|
 |
newtonian
Guru
Joined: 19 Jan 2005
Posts: 465
Location: Hokkaido Japan
|
|
| Back to top |
|
|
newtonian
Guru
Joined: 19 Jan 2005
Posts: 465
Location: Hokkaido Japan
|
| Posted: Fri Aug 15, 2008 9:28 am Post subject: figured it out |
|
|
OK, I got it working! Here's what I did.
1. added the 2nd interface to /etc/init.d/
| Code: |
cd /etc/init.d
ln -s net.lo net.eth1
ln -s net.lo net.xenbr1
|
2. created this file:
| Code: |
vim /etc/xen/scripts/network-bridge-wrapper
chmod 755 /etc/xen/scripts/network-bridge-wrapper
|
with this content:
| Code: | #!/bin/sh
/etc/xen/scripts/network-bridge $1 netdev=eth0
/etc/xen/scripts/network-bridge $1 netdev=eth1 |
3. added the following to /etc/conf.d/net :
| Code: | config_eth0=( "dhcp" )
config_eth1=(
"222.48.255.51 netmask 255.255.255.192 brd 222.48.255.255"
)
bridge_xenbr0="eth0"
brctl_xenbr0=( "setfd 0" "sethello 0" "stp off" )
config_xenbr0=( dhcp )
routes_xenbr0=( "default via 192.168.0.1" )
bridge_xenbr1="eth1"
brctl_xenbr1=( "setfd 0" "sethello 0" "stp off" )
routes_xenbr1=( "default via 222.48.255.1" )
config_xenbr1=(
"222.48.255.51 netmask 255.255.255.192"
)
|
4. replaced network-bridge with network-bridge-wrapper in /etc/xen/xend-config.sxp.
| Code: | | vim /etc/xen/xend-config.sxp |
Here is the new line:
| Code: |
(network-script network-bridge-wrapper)
|
You can confirm your setup by running ifconfig after reboot:
| Code: | eth0 Link encap:Ethernet HWaddr 00:15:17:54:31:74
inet addr:192.168.0.185 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:308316 errors:0 dropped:0 overruns:0 frame:0
TX packets:3460370 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:19602574 (18.6 Mb) TX bytes:5235735778 (4993.1 Mb)
eth1 Link encap:Ethernet HWaddr 00:15:17:54:31:75
inet addr:222.48.255.51 Bcast:222.48.255.255 Mask:255.255.255.192
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5 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:1004 (1004.0 b) TX bytes:0 (0.0 b)
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:56 errors:0 dropped:0 overruns:0 frame:0
TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4340 (4.2 Kb) TX bytes:4340 (4.2 Kb)
peth0 Link encap:Ethernet HWaddr 00:15:17:54:31:74
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:308173 errors:0 dropped:0 overruns:0 frame:0
TX packets:3458703 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:25141922 (23.9 Mb) TX bytes:5247034711 (5003.9 Mb)
Base address:0x3020 Memory:b9420000-b9440000
peth1 Link encap:Ethernet HWaddr 00:15:17:54:31:75
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1478 (1.4 Kb) TX bytes:128 (128.0 b)
Base address:0x3000 Memory:b9400000-b9420000
|
5. domU config
| Code: | cat /mnt/data/xen/configs/gentoo
kernel = "/mnt/data/xen/kernel/vmlinuz-2.6.21-xenU"
memory = 2048
name = "gentoo"
disk = ['file:/mnt/data/xen/disks/ext3root.img,sda1,w']
root = "/dev/sda1"
vif = [ "mac=00:11:50:00:00:51, bridge=xenbr0" ]
vcpus = 4
|
6. in your domU, setup /etc/conf.d/net as you would normally. Keep in mind that this domU is only connected to xenbr0 (192.168.0.0) network as per the vif attribute set in the config file above, you should be able to add a second mac and bridge to that vif statement in the config above but I haven't tested it.
This worked for me. Please let me know if something or many things are incorrect here. I couldn't find any other howtos or forum topics gentoo specific on this topic. Hope this helps others.
Cheers, |
|
| Back to top |
|
|
newtonian
Guru
Joined: 19 Jan 2005
Posts: 465
Location: Hokkaido Japan
|
| Posted: Mon Oct 11, 2010 1:29 pm Post subject: Xen4 |
|
|
New HowTo for Xen 4 on Gentoo
Make xen0 kernel with netloop and netbk as modules, added the following to
/etc/modules.autoload.d/kernel-2.6.
| Code: | | vim /etc/modules.autoload.d/kernel-2.6 |
| Code: | netloop nloopbacks=1
netbk |
make it so that gentoo doesn't try to use the standard network scripts:
| Code: | | RC_PLUG_SERVICES="!net.*" |
| Code: | | rm /etc/init.d/net.eth0; rm /etc/init.d/net.eth1 |
| Code: | | rc-update net.eth0 del; rc-update net.eth1 del |
| Code: | | cd /etc/init.d/;ln -s net.lo net.xenbr0;ln -s net.lo net.xenbr1 |
Add xenbr0 and xenbr1 to default run level
| Code: | rc-update add net.xenbr0 default
rc-update add net.xenbr1 default |
update /etc/conf.d/net
| Code: | | vim /etc/conf.d/net |
| Code: | # This blank configuration will automatically use DHCP for any net.*
# scripts in /etc/init.d. To create a more complete configuration,
# please review /etc/conf.d/net.example and save your configuration
# in /etc/conf.d/net (this file :]!).
config_xenbr0=( "192.168.1.1 netmask 255.255.255.0" )
bridge_xenbr0="eth0"
routes_xenbr0=( "default via 192.168.1.1" )
config_xenbr1=( "210.48.2.50 netmask 255.255.255.192" )
bridge_xenbr1="eth1"
routes_xenbr1=( "default via 210.48.2.1" )
dns_servers_xenbr1=( "203.141.128.135 203.141.128.133" )
dns_domain_xenbr1="mydomain.com"
# end of /etc/conf.d/net
|
notice nothing refers to config_eth0 or config_eth1, all of these references have been replaced by config_xenbr0 and config_xenbr1
comment out the network-bridge script by commenting out the call to the script in /etc/xen/xend-config.sxp
| Code: | vim /etc/xen/xend-config.sxp
#(network-script network-bridge) make sure network-bridge script is not called and comment out this line |
domU example:
| Code: | vif = [ 'mac=00:11:50:00:00:97,bridge=xenbr1' ]
# I needed the next line for gentoo vm's, other vm's may require something else ie. extra="xencons=ttyS"
extra=”xencons=tty console=tty1″ |
Based on these articles:
https://forums.gentoo.org/viewtopic-t-689293-highlight-xen+bridge.html
http://foxpa.ws/2010/06/06/gentoo-xen-4-migration/ |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
Networking & Security
