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IPSec VPN resets H323hostcall connection after 1 hour

Hello everyone,

I've an IPSec tunnel between Cisco ASA5540 and Cisco 2851. I use this tunnel for Video conferenc calls as well where I am facing a wiered problem.

Problem statement:

IPSec tunnel resets h323hostcall TCP connection ( on TCP port 1720) after 1 hour and call gets disconnected. I've gathered logs on both VC (Video conference) client and gatekeeper side and saw resets as follows:

On Client side( behind 2851): a TCP reset sent by Gatekeeper( behind ASA)

On Gatekeeper side            : a TCP reset sent by client

Now i dont see any TCP reset generated on client or Gatekeeper itself which means these are generated by ASA and sent both ways. I even configured conn and h252 idle timeout to be 2 hours on ASA ( default is 1 hour on ASA) but its still same.

Please let me know if there's anything missing.

Abid

1 REPLY
Cisco Employee

Re: IPSec VPN resets H323hostcall connection after 1 hour

hmmm, can you please send us the logs and captures on asa

here is the link which will help you take logs and captures

http://www.cisco.com/en/US/products/ps6120/products_tech_note09186a00807c35e7.shtml#s1

you can filter them based on src and dst ip and and also start collecting them during this time range approx 58-59mins, the reason being since its video traffic the captured data may be too much to upload if we collect captures for more than few mins

please log at level 6 or 7

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