3 月 112013
本机PING互联网主机显示网络已连通
[root@localhost ~]# ping www.qq.com -c 5 PING www.qq.com (119.147.15.17) 56(84) bytes of data. 64 bytes from 119.147.15.17: icmp_seq=1 ttl=55 time=1.84 ms 64 bytes from 119.147.15.17: icmp_seq=2 ttl=55 time=2.23 ms 64 bytes from 119.147.15.17: icmp_seq=3 ttl=55 time=2.03 ms 64 bytes from 119.147.15.17: icmp_seq=4 ttl=55 time=2.19 ms 64 bytes from 119.147.15.17: icmp_seq=5 ttl=55 time=2.06 ms --- www.qq.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4007ms rtt min/avg/max/mdev = 1.843/2.075/2.234/0.143 ms [root@localhost ~]#
通过其他主机分别ping双网卡的两个接口IP地址
查看主机网络接口配置信息
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE="eth0" BOOTPROTO="static" HWADDR="00:50:56:A8:1D:55" NM_CONTROLLED="yes" ONBOOT="yes" TYPE="Ethernet" UUID="2bfc3a4e-e6e9-4022-a318-d6033b349e9c" IPADDR=192.168.11.150 PREFIX=24 GATEWAY=192.168.11.1 DNS1=202.96.128.86 [root@localhost ~]#
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1 DEVICE="eth1" BOOTPROTO="static" HWADDR="00:50:56:A8:1D:56" NM_CONTROLLED="yes" ONBOOT="yes" TYPE="Ethernet" UUID="3bed83c9-d166-43a0-b6dd-70b4897551a4" IPADDR=192.168.21.150 PREFIX=24 GATEWAY=192.168.21.1 DNS1=202.96.128.86 [root@localhost ~]#
添加路由信息
为每个接口指定默认路由
[root@localhost ~]# ip route replace default via 192.168.11.1 dev eth0 [root@localhost ~]# ip route replace default via 192.168.21.1 dev eth1
添加路由表
# ip route add 192.168.11.0/24 dev eth0 src 192.168.11.150 table 200 # ip route add default via 192.168.11.1 table 200 # ip route add 192.168.21.0/24 dev eth1 src 192.168.21.150 table 201 # ip route add default via 192.168.21.1 table 201
设置路由表规则
[root@localhost ~]# ip rule add from 192.168.11.150 table 200 [root@localhost ~]# ip rule add from 192.168.21.150 table 201
再次PING目的主机网络eth0接口
实验网络拓扑