How to troubleshoot packet traffic on Cisco router ?

Hi !
I can't find how to view current ip traffic on cisco router (1760).
There is very good command on linux systems - iptraf or ehterall (ethercap).
But I don't see anything like that on cisco.
I want to know a few things - for example
- is there any traffic from 192.168.0.7 (Vlan1) where setination port is 53
(both tcp and udp)
- is there any traffic from 192.168.0.55 (and I want filter only this
traffic)
- is there any traffic to destination port 53 ( on all interfaces, and only
Vlan 1)
I want see those packets.
From WAN I have FastEthernet interface, from internal I have 4-port switch
which is configured like 4 differents ports (there are 4 Vlans with 4
different ip subnets).
Vlan 1 - is LAN
Vlan 4 - is DMZ.
Thanks in advanced.
Domnik
Reply to
Dominik
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debug ip along with various filters, I think. But be careful.
Reply to
JohnD
netflow or IP accounting is a good way to see stats about packets, but wont show you the actual data.
both only show routed traffic unless you have something like a Cat6500. > > From WAN I have FastEthernet interface, from internal I have 4-port switch > which is configured like 4 differents ports (there are 4 Vlans with 4 > different ip subnets). > Vlan 1 - is LAN > Vlan 4 - is DMZ. > > Thanks in advanced. > Domnik
Reply to
stephen
Thanks guys !
Well - it's not perfect but maybe help a little bit. Dominik
Reply to
domibik

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