VPN Concentrator tunnel DPD timeout

[gonzalo.gil]

Hi Guys,

I need to find out the timeout for the Dead Peer Detection (DPD) for the VPN Concentrator (version 3.6.3). I undestand how the DPD works on the VPN Client but documentation does not seem to cover the Concentrator side of it.

The reason why I ask is because the client sometimes gets disconnected (i.e. line failure or other) and the concentrator still thinks the client tunnel is up. We only allows one simultaneous connection per user so when the client attemps to connect for 2nd time ... fails.

Could you help?

Thansk in advanced

Gonzalo

[raymong]

The default timeout value for the DPD mechanism is 90 seconds. The minimum value configurable is 30 seconds and maximum is 480 seconds. Here's a link with that documents this information...

http://www.cisco.com/univercd/cc/td/doc/product/vpn/client/rel_3_0/user_gd/vc3.htm#xtocid10

[e.l]

90 seconds is DPD for VPN client. It is not DPD for the VPN 3000 Concentrator.

VPN3000 Concentrator`s DPD is as follow:

1. to VPN Client (software or hardware) is every 5 minutes.

2. to another VPN3000 Concentrator is every 10 seconds.

Regards,

Engel