Mailing List Archive: cisco switch configuration question

Please excuse me if this is not right place to ask this question. If it is
the case, point me to right list.

I have a cisco 3650 switch. "show ip arp" gives following output...
Internet 192.169.2.3 - 0018.73a3.7642 ARPA Vlan10
Internet 192.169.2.2 98 0000.f020.4040 ARPA Vlan10
Internet 192.169.2.1 - 0000.0c07.ac00 ARPA Vlan10
Internet 172.16.22.35 0 Incomplete ARPA
Internet 172.16.22.36 0 Incomplete ARPA
Internet 172.16.10.20 2 0003.a203.018e ARPA Vlan30
Internet 172.16.10.18 147 0003.a203.0130 ARPA Vlan30
......

When I say "debug arp", I see ARP packets of Vlan30 only. How can I see
packets of Vlan10? Also does cisco debug utility supports filter expression
like tcpdump? If yes, can someone point me to right documents/URLs?

Regards,
Mohan

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cisco-bba-bounces@puck.nether.net <> wrote on :

> I have a cisco 3650 switch. "show ip arp" gives following output...
> Internet 192.169.2.3 - 0018.73a3.7642 ARPA Vlan10
> Internet 192.169.2.2 98 0000.f020.4040 ARPA Vlan10
> Internet 192.169.2.1 - 0000.0c07.ac00 ARPA Vlan10
> Internet 172.16.22.35 0 Incomplete ARPA
> Internet 172.16.22.36 0 Incomplete ARPA
> Internet 172.16.10.20 2 0003.a203.018e ARPA Vlan30
> Internet 172.16.10.18 147 0003.a203.0130 ARPA Vlan30
> ......
>
> When I say "debug arp", I see ARP packets of Vlan30 only. How
> can I see packets of Vlan10?

"debug arp" should show all ARP activity. Are you sure that there are
ARP packets in Vlan10? You can test it by pinging a non-existant address
on this segment.

> Also does cisco debug utility supports filter expression
> like tcpdump? If yes, can someone point me to right documents/URLs?

Some debug cmds accept an ACL which you can use to filter it, but there
is no generic filter for all cmds..

oli

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