[c-nsp] debugging all incoming traffic on an interface

Jason Lixfeld jason at lixfeld.ca
Tue Sep 23 22:52:34 EDT 2008


It may, however it doesn't appear 12.4 is supported on the 2651.

On 23-Sep-08, at 1:27 PM, Rodney Dunn wrote:

> Might this help if you get on 12.4(20)T:
>
> http://supportwiki.cisco.com/ViewWiki/index.php/Tech_Insights:Utilizing_the_New_Packet_Capture_Feature
>
>
>
> On Tue, Sep 23, 2008 at 10:42:00AM -0400, Jason Lixfeld wrote:
>> I have.  There are no interface conditions on either of those debug
>> [ip] packet commands.  Also, debug interface doesn't allow me the
>> option of my ATM interface(s).
>>
>> On 23-Sep-08, at 9:03 AM, Ozgur Guler wrote:
>>
>>>
>>> Have you tried using
>>> debug ip packet or
>>> debug packet with
>>> debug condition interface?
>>>
>>>
>>>
>>> --- On Mon, 22/9/08, Jason Lixfeld <jason at lixfeld.ca> wrote:
>>> From: Jason Lixfeld <jason at lixfeld.ca>
>>> Subject: [c-nsp] debugging all incoming traffic on an interface
>>> To: cisco-nsp at puck.nether.net
>>> Date: Monday, 22 September, 2008, 11:52 PM
>>>
>>> I'm trying to give a local ILEC an idea on where to look to
>>> troubleshoot an issue on a bridged DSL circuit.  It terminates
>>> directly onto a WIC-1ADSL interface in a 2651 on the one side and a
>>> VLAN on the other side.  Can't pass traffic over it, but the inbound
>>> packet counters are incrementing on the 2651 side, however I have no
>>> idea what kind of
>>> traffic is actually hitting the interface, nor do I
>>> know what the source or destination of the traffic is.
>>>
>>> My question in all of this is what's the best way to see all the
>>> traffic coming into this interface?  Attaching a access-list 100
>>> permit ip any any log-input to the interface and/or subinterface via
>>> ip access-group didn't show anything - the interface counters
>>> incremented while the access-list counter didn't.  I can't debug the
>>> ATM (sub)interface, nor can I configure a SPAN port on an ATM
>>> (sub)interface.
>>>
>>> Anyone know how I might go about this?  I suppose in a worst case
>>> scenario, I could hook up a DSL modem to the line and plug that  
>>> into a
>>> wireshark box, but I'm hoping there's a more localized solution.
>>>
>>> Thanks in advance.
>>> _______________________________________________
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>>> cisco-nsp at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>>>
>>
>
>
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