两个子网中间连接两个H3C的MSR路由器,而这两个H3C路由器之间通过GRE来建立隧道,这样的一个互联互通的网络在实际应用中很可能会出现,下面就给大家讲解遇到这种情况怎么办?首先说的是组网需求和拓扑图,后面还有详细的配置步骤。 一、 组网需求 二、组网拓扑图如下
在开始下面的配置之前,需确保H3C A和H3C B之间路由可达。 (1)配置路由器H3C A # 配置接口Ethernet1/1。 <H3C A> system-view [H3C A] interface ethernet 1/1 [H3C A-Ethernet1/1] ip address 10.1.1.1 255.255.255.0 [H3C A-Ethernet1/1] quit # 配置接口Serial2/0(隧道的实际物理接口)。 [H3C A] interface serial 2/0 [H3C A-Serial2/0] ip address 1.1.1.1 255.255.255.0 [H3C A-Serial2/0] quit # 创建Tunnel0接口。 [H3C A] interface tunnel 0 # 配置Tunnel0接口的IP地址。 [H3C A-Tunnel0] ip address 10.1.2.1 255.255.255.0 # 配置Tunnel封装模式。 [H3C A-Tunnel0] tunnel-protocol gre # 配置Tunnel0接口的源地址(Serial2/0的IP地址)。 [H3C A-Tunnel0] source 1.1.1.1 # 配置Tunnel0接口的目的地址(H3C B的Serial2/1的IP地址)。 [H3C A-Tunnel0] destination 2.2.2.2 [H3C A-Tunnel0] quit # 配置从H3C A经过Tunnel0接口到Group 2的静态路由。 [H3C A] ip route-static 10.1.3.0 255.255.255.0 tunnel 0 (2) 配置路由器H3C B # 配置接口Ethernet1/1。 <H3C B> system-view [H3C B] interface ethernet 1/1 [H3C B-Ethernet1/1] ip address 10.1.3.1 255.255.255.0 [H3C B-Ethernet1/1] quit # 配置接口Serial2/1(隧道的实际物理接口)。 [H3C B] interface serial 2/1 [H3C B-Serial2/1] ip address 2.2.2.2 255.255.255.0 [H3C B-Serial2/1] quit # 创建Tunnel0接口。 [H3C B] interface tunnel 0 # 配置Tunnel0接口的IP地址。 [H3C B-Tunnel0] ip address 10.1.2.2 255.255.255.0 # 配置Tunnel封装模式。 [H3C B-Tunnel0] tunnel-protocol gre # 配置Tunnel0接口的源地址(Serial2/1的IP地址)。 [H3C B-Tunnel0] source 2.2.2.2 # 配置Tunnel0接口的目的地址(H3C A的Serial2/0的IP地址)。 [H3C B-Tunnel0] destination 1.1.1.1 [H3C B-Tunnel0] quit # 配置从H3C B经过Tunnel0接口到Group 1的静态路由。 [H3C B] ip route-static 10.1.1.0 255.255.255.0 tunnel 0 四、验证配置结果 完成以上配置后,分别查看H3C A和H3C B的Tunnel接口状态。 [H3C A] display interface tunnel 0 Tunnel0 current state: UP Line protocol current state: UP Description: Tunnel0 Interface The Maximum Transmit Unit is 1476 Internet Address is 10.1.2.1/24 Primary Encapsulation is TUNNEL, service-loopback-group ID not set. Tunnel source 1.1.1.1, destination 2.2.2.2 Tunnel keepalive disabled Tunnel protocol/transport GRE/IP GRE key disabled Checksumming of GRE packets disabled Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0 Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0 Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0 Last clearing of counters: Never Last 300 seconds input: 0 bytes/sec, 0 packets/sec Last 300 seconds output: 0 bytes/sec, 0 packets/sec 10 packets input, 840 bytes 0 input error 10 packets output, 840 bytes 0 output error [H3C B] display interface tunnel 0 Tunnel0 current state: UP Line protocol current state: UP Description: Tunnel0 Interface The Maximum Transmit Unit is 1476 Internet Address is 10.1.2.2/24 Primary Encapsulation is TUNNEL, service-loopback-group ID not set. Tunnel source 2.2.2.2, destination 1.1.1.1 Tunnel keepalive disabled Tunnel protocol/transport GRE/IP GRE key disabled Checksumming of GRE packets disabled Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0 Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0 Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0 Last clearing of counters: Never Last 300 seconds input: 2 bytes/sec, 0 packets/sec Last 300 seconds output: 2 bytes/sec, 0 packets/sec 10 packets input, 840 bytes 0 input error 10 packets output, 840 bytes 0 output error # 从H3C B可以Ping通H3C A上Ethernet1/1接口的地址。 [H3C B] ping 10.1.1.1 PING 10.1.1.1: 56 data bytes, press CTRL_C to break Reply from 10.1.1.1: bytes=56 Sequence=1 ttl=255 time=2 ms Reply from 10.1.1.1: bytes=56 Sequence=2 ttl=255 time=2 ms Reply from 10.1.1.1: bytes=56 Sequence=3 ttl=255 time=2 ms Reply from 10.1.1.1: bytes=56 Sequence=4 ttl=255 time=2 ms Reply from 10.1.1.1: bytes=56 Sequence=5 ttl=255 time=2 ms --- 10.1.1.1 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 2/2/2 ms 好了,通过这个案例的配置,相信大家对H3C MSR路由器的GRE over IPv4应该比较熟悉了。欢迎交流! |
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