本實例要說明的是:實現10.0.0.0/24網段與192.168.2.0/24網段相互訪問.
步驟1:查看本機IP地址
[root@localhostroot]# ifconfig
eth0 Linkencap:Ethernet HWaddr 00:0C:29:A7:6E:77
inet addr:10.0.0.120Bcast:10.0.0.255 Mask:255.255.255.0
UP BROADCASTRUNNING MULTICAST MTU:1500 Metric:1
RX packets:2418errors:0 dropped:0 overruns:0 frame.:0
TX packets:1293errors:0 dropped:0 overruns:0 carrier:0
collisions:0txqueuelen:100
RX bytes:1000347(976.9 Kb) TX bytes:192592 (188.0 Kb)
Interrupt:10Base address:0x2024
步驟2:添加路由規則
[root@localhostroot]# route add -net 192.168.2.0/24 eth0
步驟3:查看路由規則
[root@localhostroot]# route
Kernel IProuting table
DestinationGateway Genmask Flags Metric Ref Use Iface
10.0.0.0 * 255.255.255.0 U 0 0 0 eth0
192.168.2.0 *255.255.255.0 U 0 0 0 eth0
169.254.0.0 *255.255.0.0 U 0 0 0 eth0
注：route規則中，必須同時存在兩個網段，否則,一個網段的IP地址將無法訪問到另一網段的IP地址。
步驟4:檢測本地機(IP:10.0.0.120)與遠程機(IP:192.168.2.80)是否可互訪.
[root@localhostroot]# ping 192.168.2.80
PING 192.168.2.80 (192.168.2.80) 56(84) bytes of data.
64 bytes from192.168.2.80: icmp_seq=1 ttl=127 time=5.51 ms
64 bytes from192.168.2.80: icmp_seq=2 ttl=127 time=3.17 ms
步驟5:刪除路由規則
[root@localhostroot]# route del-net 192.168.2.0/24 eth0