Adding a new NIC to Xen 4.1

# Adding a NIC to Xen 4.1

# 1.
ifconfig eth1 0.0.0.0
ip link set dev eth1 name peth1  # renaming eth1 to peth1, because we want a free eth1
brctl addbr eth1                 # create bridge from eth1
brctl addif eth1 peth1           # assign peth1 to the bridge
ifconfig eth1 x.x.x.20 netmask 255.255.255.0 broadcast x.x.x.255  # bring up eth1 bridge
brctl show                       # check


# 2.
# Create: /etc/xen/scripts/my-bridges
#!/bin/sh
dir=$(dirname "$0")
$dir/network-bridge $@ vifnum=0 netdev=eth0 bridge=eth0
$dir/network-bridge $@ vifnum=1 netdev=eth1 bridge=eth1

# 3.
# modify /etc/xen/xend-config.sxp
--- (network-script network-bridge)
+++ (network-script my-bridges)

# 4.
# modify: vm1.conf
vif        = ['ip=1.2.3.4, vifname=vifvm129.0, mac=de:ad:be:ef:ca:fe, bridge=eth1']