NTP through a Firewall Service Module?

[samwise_diver]

I am querying a NTP router outside of a firewall interface, the firewall is a service module in a catalyst switch. I see the request hit the NTP router but no packets seem come back through the firewall. Any ideas would be helpful

[varakantam]

are you allowing NTP replies back in ? You can user capture facility on FWSM to see the replies if any