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FWSM show arp

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

1 ACCEPTED SOLUTION

Accepted Solutions
Red

FWSM show arp

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

Thanks, Varun Rao Security Team, Cisco TAC
4 REPLIES
Red

FWSM show arp

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

Thanks, Varun Rao Security Team, Cisco TAC
Community Member

FWSM show arp

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

Red

FWSM show arp

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

Thanks, Varun Rao Security Team, Cisco TAC
Community Member

FWSM show arp

Hi Varun,

thank you for your explanation.

Kind Regards,

Michael

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