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Re: L2TP server support?



Hi,

We have been using sl2tps in FreeBSD. Except for a few unknown crashes
during OS boot its working fine. Only few users are using the L2TP and
we have moved to OpenVPN.

We are using FreeBSD 5.4-STABLE and sl2tps-0.4.

Daniel Pocock wrote:
> 
> 
> Hi,
> 
> I've been looking at the L2TP server support in FreeBSD.
> 
> So far, I've found the following:
> 
>    sl2tps
> 
>    mpd + some patch - L2TP patch documented in German
> 
>    l2tpd - marked as broken
> 
> Given that the mpd patch was not in ports, and was only documented in
> German, and that l2tpd was marked broken, I though I would try sl2tps.
> 
> However, when trying to connect from l2tpd on Linux, the FreeBSD box
> logs the following and rejects the attempt: "processing failed on
> mandatory AVP"
> 
> After a few attempts, the sl2tps process stops responding to any L2TP
> packets.  Even killing the process and starting it again doesn't help -
> I have to completely reboot the FreeBSD box, which suggests there is a
> fault in the kernel code.
> 
> Can someone please advise the preferred way of running a stable L2TP
> server on FreeBSD?  Which version of FreeBSD and which daemon?   We are
> aiming to terminate 100+ concurrent tunnels from a variety of client
> devices.
> 
> Regards,
> 
> Daniel
> 
> 
> r2# sl2tps -D
> debug: starting subsystem "curconf"
> debug: starting subsystem "pidfile"
> debug: creating pidfile "/var/run/sl2tps.pid"
> debug: starting subsystem "error_log"
> notice: process 567 server started
> Segmentation fault (core dumped)
> 
> r2# sl2tps -D
> info: waiting for connections...
> debug: starting subsystem "curconf"
> debug: starting subsystem "pidfile"
> debug: creating pidfile "/var/run/sl2tps.pid"
> debug: starting subsystem "error_log"
> notice: process 568 server started
> info: [xxxx:1701]: rec'd SCCRQ in state idle
> info: [xxxx:1701]: connected to "h1", version=1.0
> info: [xxxx:1701]: rec'd SCCCN in state wait-ctl-conn
> info: [xxxx:1701]: rec'd ICRQ in state established
> info: [xxxx:1701]: call #0: rec'd CDN in state wait-connect
> info: call from [xxxx:1701] terminated: result=2 error=6
> errmsg="processing failed on mandatory AVP"
> 
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