I have a tftp server on my local network and devices based on remote sites. Between the two networks I have a firewall, ASA 7.2(4), routers and a MPLS VPN network. When the devices try to pull the image from the tftp server, the connection times out (on a sniffer I can see packets with error code: unkown transfer ID). I have tftp inspect rule set up, but doesn't seem to have solved the problem. Anyone any ideas?