Problems connecting to VPN with Nortel Client

[HoodRich]

We have a VPN at work .... the client I use is Nortel Contivity. Thats as much as I know about the subject matter.

I have been successfully working from home via my IPCop machine .... which unfortunately died recently. I picked up a Dlink DSL-2540U today and it works fine, except that I cant connect to the VPN at work via this router. I can confirm the VPN at work is up as I am able to connect via 3G. The problem is definately on this router. Also, I am able to ping the VPN machine at work....so I dont have a problem "seeing" the machine. If I try to connect though, I get a "Remote Host is not responding" error.

Does anybody have any idea which ports I would have to forward/open for this to work?

 

[HoodRich]

Resolved!

Allow VPN -9550 WAN,(IP range of contivity switches) LAN,* UDP,9550
Allow VPN -9550 WAN,( IP range of contivity switches) LAN,* TCP,9550
Allow VPN -1723 WAN, ,( IP range of contivity switches) LAN,* TCP,1723
Allow VPN -1723 LAN,* WAN, ,( IP range of contivity switches) TCP,1723
Allow VPN -500 LAN,* WAN, ,( IP range of contivity switches) UDP,500 
Allow VPN -500 WAN, ,( IP range of contivity switches) LAN,* UDP,500

as well as TCP 443

Sorted

 

[JanAbraham]

How do you open ports on the dsl-2540u?