[Openswan Users] UMTS l2tp/ipsec

Paul Wouters paul at xelerance.com
Tue Apr 4 20:52:47 CEST 2006

On Mon, 3 Apr 2006, Flavian Dola wrote:

> I setup an openswan/l2tpd server.
> Roadwarrior clients connect successfully (via xDSL, UMTS, ...)
> But via umts, they are disconnect very frequently (every approximately ten
> minutes). The Umts network seems good.
> Is there some finetuning needed due to timeouts etc...?
> Can someone help me to do this?

It should just work without problems.

Are you behind NAT? Then there should be frequent keep-alive packets to
keep the NAT mapping alive.
Are you ising DPD? DPD might be very bad for UMTS if there is congestion or
when you move between cells, and might cause the link to die.


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