H3C设备之ARP代理

PCA:172.16.0.2 255.255.0.0

PCB:172.16.1.2 255.255.0.0

RTA:G0/0:172.16.0.1 255.255.255.0

        G0/1:172.16.1.1 255.255.255.0

利用ARP代理使两个子网互访；

[RTA]interface G0/0

         ip address 172.16.0.1 24

         proxy-arp enable                         开启ARP代理功能

         interface G0/1

         proxy-arp enable

此时RTA的ARP表上有两边PC的IP和MAC地址信息。

[H3C]disp arp all
                Type: S-Static    D-Dynamic    A-Authorized
IP Address       MAC Address     VLAN ID  Interface              Aging Type
172.16.1.2       00e0-0400-1100  N/A      Eth0/0/0               12    D
172.16.0.2       000c-29b7-2033  N/A      Eth0/1/0               12    D

此时PCA和PCB可以通过ARP代理广播相互访问：

C:\Documents and Settings\xiaofei>ping 172.16.1.2

Pinging 172.16.1.2 with 32 bytes of data:

Reply from 172.16.1.2: bytes=32 time<1ms TTL=254
Reply from 172.16.1.2: bytes=32 time=1ms TTL=254
Reply from 172.16.1.2: bytes=32 time=1ms TTL=254
Reply from 172.16.1.2: bytes=32 time<1ms TTL=254

Ping statistics for 172.16.1.2:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

C:\Documents and Settings\xiaofei>

<H3C>ping -a 172.16.1.2 172.16.0.2
  PING 172.16.0.2: 56  data bytes, press CTRL_C to break
    Request time out
    Reply from 172.16.0.2: bytes=56 Sequence=2 ttl=127 time=1 ms
    Reply from 172.16.0.2: bytes=56 Sequence=3 ttl=127 time=1 ms
    Reply from 172.16.0.2: bytes=56 Sequence=4 ttl=127 time=1 ms
    Reply from 172.16.0.2: bytes=56 Sequence=5 ttl=127 time=1 ms

  --- 172.16.0.2 ping statistics ---
    5 packet(s) transmitted
    4 packet(s) received
    20.00% packet loss
    round-trip min/avg/max = 1/1/1 ms

<H3C>