Telkom, IS uncapped and VPN's

[LJvdBerg]

Good day all,

We've got multiple sites connected using ISA server and ADSL lines (IS uncapped static IP service).

The VPN drops on average 6 times per day.

The branch users make use of Terminal services and for obvious reasons can’t work until the VPN connection is established again.

Is this a standard Telkom ADSL problem? Can it be that a brief disconnection can cause this or should I try looking at other causes?

We've contacted the ISP, they've swapped out routers etc., we have checked, replaced and tested everything that we can ... the only remaining component/party is Telkom.

Comments please.

 

[JayM]

Definitely not standard with Telkom...I stay connected for 15h plus without RDP dropping (IPSec VPN - SAIX ADSL, Verizon leased line). I assume you're using an IS supplied Cisco 837 - ask them to enable logging on the ATM interface to see if it is a line issue or not.

If it isn't it could be router, ISA, or IS network related. In this case, you should set up some pings (ping -t) that run to various hosts along the route you take to find out exactly what is the problem.

 

[LJvdBerg]

I'm monitoring about 10 sites with WhatsupGold. Using ping to test if the router is up and running. Most sites are 94% - 97% up, the site concerned 91%. Telkom just says everything on their side is correct.

ps It's the Cisco router

 

[JayM]

So is it only one branch which is giving trouble?

Phone IS and ask them to enable the ATM debugging on the router - it will keep a log of dates/times that the line disconnects/reconnects. This will give you more ammo when logging a fault with Telkom.