[c-nsp] Packet capturing

Frank Bulk frnkblk at iname.com
Thu Jun 14 23:48:02 EDT 2012


I assume you're using an Calix E5 or E7?  If so, why not trying to port
mirror off the Calix.  You can then use display or capture filters to zero
in on the VLAN you want to look at, though a capture filter on DHCP should
be sufficient to make it a manageable stream to look at.

Frank

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Michael Sprouffske
Sent: Thursday, June 14, 2012 9:24 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Packet capturing

I currently have a calix switch attached to a Cisco 7606. I'm doing Q-n-Q to
the router and having an issue with customers obtaining an ip address. If I
delete and re-create the sub interface for the customer they can get an ip
and I see an arp entry. I also looked at my dhcp server logs to verify that
it hands out an address immediately after the interface is created. 
I have a Linux box setup on a mirror port for packet captures. I'm having a
hard time capturing the right packets to see where this problem exists.  I
wanna see if the packets are leaving the calix gear and going toward the
router. Has anyone had an issue with sub interfaces responding this way?
This problem started 1 week ago. Thank you for any help.

Sent from my iPhone
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