I have a question about the TCP Sequence Check Flow option.
We have two IP based PBX systems in diff loactions connected with two NS5400 via Internet. A backup connection for Signaling Survivability exists, if the main connection fails. The TCP Signaling connection roams samless between the main and the backup path during lack of connection.
The problem is that if the Signaling TCP session jumps back to the main connection (through the fiewalls) the session gets dropped due to sequence mismatsches...
It works without any probles if the seq-check flow options is globaly deactivated. Is there a way to switch off the seq-check only for specific TCP ports within a policy