FWSM show arp

[michaelillgen]

Hello,

when I sent the "show arp" command on an FWSM I get the ARP table. The ARP table contains some strange entries. Is there a way to get a normal arp table without any substitutions (like the arp table on any switch), which contains only the interface, the IP-Address and the MAC?

The substitutions are not equal with the DNS names of the IP-Addresses.

I will need this for documentation purposes.

Example:

Interface      IP-Address     Mac

LAN-1          172.17.11.66   00d0.c998.98a5

LAN-1          172.17.11.27   00d0.c996.e02ee

LAN-1          Maschine_1     00d0.c9ba.6b8a

LAN-2          A-172.17.12.10 00d0.c93a.c520

Thanks in advance.

Regards,

Michael

[varrao · Accepted solution]

Hi Michael,

It seems like you have names command enabled, what you can do is, first do:

no names

show arp

once you get the correct output, then do:

names

This would put the names back.

Hope that helps.

Thanks,

Varun

[michaelillgen]

Hi Varun,

thank you for hint. Disabling the names command solves my problem. This is exactly what I was looking for.

Do you know on which features/reports the names mapping has influence too? Maybe I don't need it in general.

Thanks in advance.

Regards,

Michael

[varrao]

Hi Michael,

Thats good

Well there is no feature or report the names have influence on, its just that, names are used as reference to ip addresses, for eg I can give the ip address of your PC as Michaels_pc and everytime you access any service, I would get the name in the syslog, I can use it in nat or acl commands as well, its just used for naming an ip, but does not affect any traffic or feature on he firewall.

Thanks,

Varun

[michaelillgen]

Hi Varun,

thank you for your explanation.

Kind Regards,

Michael