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

[James Baker]

Do you have a Dialer interface defined and attached to the ATM
interfaces?

If you do, try the ACL on that.

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Jason Lixfeld
Sent: Tuesday, 23 September 2008 10:52 a.m.
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] debugging all incoming traffic on an interface

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.
----------

The information contained in this e-mail and any attachments is confidential
and is intended for the attention and use of the named addressee(s) only.
Any views expressed in this message are those of the individual sender and
may not necessarily reflect the views of Chelmer Limited.

#####################################################################################
This e-mail message has been scanned for Viruses and Content and cleared 
by NetIQ MailMarshal
#####################################################################################