Re: VPN drops

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Its a Draytek 2800 on both ends, but I use VPN on the SBS2003 R1 server as we reached the VPN limits of the Draytek.

The Draytek does support multi-vpn client passthrough, and thats fine (I've seen 3 users online at the same time from the same site). Whats odd is why they keep getting kicked off.

I was hoping that theres some extra logging in the SBS server that I can turn on to find out why this is... and most importantly, does the SBS server think its a graceful disconnect, or that the users just "disappear"..

ndohyycsqotchk@xxxxxxxxxxxxxx wrote:
On Mar 23, 8:43 am, "Adrian Marsh (NNTP)"
<adrian.marsh@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
Hi All,

I've several XP users at a remote site, who VPN (PPTP) to the SBS server.

Generally, I'm happy with the VPN features of the SBS2003 R1 server
(though I'd still like to get IPSEC with UDP-encapsulation working
instead of PPTP).

However these remote users are complaining that their PPTP tunnels keep
dropping.

I can't do site-site VPN as its not a completely secured location.

But I do need to diagnose more about why the PPTP sessions are dropping.

What are my options for diagnosing this more (either from the servers
view, and/or the XP client itself??)

I use IAS log viewer to interpret the current VPN server logs, and all
that shows is that the user connected ok (not why they disconnected).

I'm monitoring simple ICMP pings to their DSL router, which shows that
the internet connection stays alive, and our ISP tells me that they see
constant days of uptime, so I've ruled out internet connectivity as an
issue.

Looking at the IAS logs, I see that connection times vary from <1min to
<1 hour..

Thanks,

Adrian

What make/model of router do you have? Some routers don't support
multiple concurrent PPTP VPN sessions to the same host.

.

Relevant Pages

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