Bridging steps under RedHat (centos, fedora)

1. Install the bridge package

yum install bridge-utils

2, modify the file/etc/sysconfig/network-scropts/ifcfg-eth0;
Bridge = br0

Delete the following

ONBOOT=yesIPADDR=10.0.0.23NETMASK=255.255.255.0GATEWAY=10.0.0.1DNS1=61.134.1.4

3. Create the file/etc/sysconfig/network-scripts/ifcfg-br0;

Bevice = br0bootproto = nonetype = bridgeonboot = yesdelay = 0 ipaddr = 10.0.0.23netmask = 255.255.255.0gateway = 10.0.0.1dns1 = 61.134.1.4)

4. Restart;
5. Check whether the bridge exists;
/Usr/sbin/brct1 show

If successful

[[email protected] ~]# brctl showbridge name     bridge id               STP enabled     interfacesbr0             8000.000c297c68aa       no              eth0[[email protected] ~]# ifconfig br0br0       Link encap:Ethernet  HWaddr 00:0C:29:7C:68:AA            inet addr:10.0.0.22  Bcast:10.0.0.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe7c:68aa/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:2268 errors:0 dropped:0 overruns:0 frame:0          TX packets:558 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0           RX bytes:134076 (130.9 KiB)  TX bytes:76172 (74.3 KiB)

W view current user

ip addr show eth0ip -s link show eth0ip route/traceroute/dig