ARP request

[vishalpatil86]

HI,

I have core switch connected to 13 other edge switches.

But when i run show arp command, it shows only following switches

coresw#show arp

Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  172.16.10.244         116   0025.4610.9e41  ARPA   Vlan10
Internet  172.16.10.243          38   0024.f98c.0cc1  ARPA   Vlan10
Internet  172.16.10.240         107   0025.4610.3c41  ARPA   Vlan10
Internet  172.16.10.254           0   0015.17ef.43d8  ARPA   Vlan10
Internet  172.16.10.252          43   0024.f761.8041  ARPA   Vlan10
Internet  172.16.10.253           -   001d.7040.8bff  ARPA   Vlan10
Internet  172.16.10.251          47   0025.4610.a0c1  ARPA   Vlan10

why other switches are not showing in this?

[Latchum Naidu · Accepted solution]

Hi Vishal,

First of all use the following command "clear arp" or "clear arp dynamic"

OK, we know the wireless controller mac address and the physical port of core switch to which the controller connected. This got to know when we used the command "show mac address-table address 88:43:e1:31:19:8b"

And also we know the IP address of wireless controller.

Now can you give command "show ip arp 172.16.10.2" on your core switch and the mac address in address resolution output must match with the mac-address which you identified physicall on your wireless controller.

If the both above command excersie success then we are sure that the wireless controller is there in the ARP table.

Please click on the correct answer on all posts if they answered your question.
Regards,
Naidu.