Shulou(Shulou.com)06/02 Report--

One-arm routing

Define

Single arm routing (router-on-a-stick) refers to the interconnection and interworking between different VLAN (virtual local area networks) which were isolated from each other by configuring subinterfaces (or "logical interfaces", there is no real physical interface) on one interface of the router.

Experiment

Draw the topology in ensp as follows:

(vlan10) pc1:192.168.10.10/24

(vlan20) pc1:192.168.20.10/24

R1

[Huawei] sys [Huawei] sysname R1[R1] int g0/0/0.10 [R1-GigabitEthernet0/0/0.10] dot1q termination vid 10 [R1-GigabitEthernet0/0/0.10] ip add 192.168.10.1 255.255.255.0 [R1-GigabitEthernet0/0/0.10] arp b en [R1-GigabitEthernet0/0/0.10] int g0/0/0.20 [R1-GigabitEthernet0/0/0.20] dot1q termination vid 20 [R1-GigabitEthernet0/0/0. 20] ip add 192.168.20.1 255.255.255.0 [R1-GigabitEthernet0/0/0.20] arp b en

LSW1

[SW1] vlan batch 10 20 [SW1] int e0/0/1 [SW1-Ethernet0/0/1] p la [SW1-Ethernet0/0/1] p d v 10 [SW1-Ethernet0/0/1] undo sh [SW1-Ethernet0/0/1] int e0/0/2 [SW1-Ethernet0/0/2] p la [SW1-Ethernet0/0/2] p d v 20 [SW1-Ethernet0/0/2] undo sh [SW1-Ethernet0/0/2] int g0/0/1 [SW1 -GigabitEthernet0/0/1] p l t [SW1-GigabitEthernet0/0/1] port trunk allow-pass vlan all [SW1-GigabitEthernet0/0/1] undo sh

Test Unicom:

Configure the IP address in PC1:

Configure the IP address in PC2:

PC > ping 192.168.20.10Ping 192.168.20.10: 32 data bytes Press Ctrl_C to breakFrom 192.168.20.10: bytes=32 seq=1 ttl=127 time=156 msFrom 192.168.20.10: bytes=32 seq=2 ttl=127 time=78 msFrom 192.168.20.10: bytes=32 seq=3 ttl=127 time=94 msFrom 192.168.20.10: bytes=32 seq=4 ttl=127 time=78 msFrom 192.168.20.10: bytes=32 seq=5 ttl=127 time=47 ms--- 192.168.20.10 ping statistics-5 packet (s) transmitted 5 packet (s) received 0.00% packet loss round-trip min/avg/max = 47 packet 90156 ms

It can realize the interworking of the whole network.

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