[vpn-help] Shrew disconnects from Juniper SRX210 after some minutes

[Kevin VPN]

On 04/03/2012 04:09 PM, Jeroen J.A.W. Hermans wrote:
> Dear all,
>
> I have a problem i have been working on a few weeks now and i don't seem
> to be able to get Shrew to work nicely with my Juniper SRX210. Setting
> up a VPN to the SRX is not a problem. Phase 1 and 2 are completed
> succesfully. I am able to ping to the other netwerk without any
> problems, but after about 6 minutes Shrew disconnects (see tracedump
> under this mail). I am using a Juniper SRX210 running JunOS 11.1R1.10
> and Shrew VPN 2.2.0. I am using a cabled network and i am behind a NAT
> router.

Hi Jeroen,

I would look at the Dead Peer Detection (DPD) or Heartbeat/Keepalive 
settings, they often have a timeout of 300 seconds (5 minutes).  Try 
turning DPD or Heartbeat off to see if that changes the problem.