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.
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