I use pktt from time to time to help diagnose performance related issues. Anyway, we've just upgraded from 8.1.2 to 8.1.3 7-mode, and I've noticed that pktt is no longer working properly when used with the "-i" option to filter traffic to a specific client. It appears to only capture outbound traffic from the Filer to the client -- no inbound traffic. It also doesn't capture any ICMP traffic anymore either. It works great on the e0M interface, but not on interfaces that utilize vlans (which is all my other interfaces!). It worked great prior to the upgrade.