Has anyone seen any problems with running IBM's ADSM backup through a PIX? We put in a couple 6500 Firewall Service Modules this weekend, and the backup guys are telling us that the backups have started failing.
We are allowing all traffic from the backup server, to the server being backed up. I don't see any denies in the firewall log.
Of course the problem is not consistent. The problem seems to mainly be with large files. We are getting about a 20% success rate. We put a sniffer on the network, and when the transfer does fail, the connection is being closed by the server. When the backup finishes successfully, the server being backed up closes the connection.
I have seen backup software from other vendors fail, however they usually were using multiple connections, and the "control connection" would time out on the Pix, due to inactivity when backing up a large file.
ADSM does not use a control connection. The server being backed up connects to the ADSM server using TCP port 1500. All data passes on that connection.
Any help would be gratefully appriciated. It's been a long weekend.
Steve Connolly
Network Engineer