Port forwarding in ADSL router Linksys

**Anilrgowda** · 22-Feb-2007, 09:34 PM

Actually we had some problem with our old router and today we replaced our router with Linksys model WAG200G.

Also we use ISA, for VPN clients we have to forward ports and I have forwarded the following ports also from this new router

50
500
51
1723

After this when VPN dial-up connection is trying to establish connection and it is only showing verifying user name and password.

It was working fine with our old router, is there any other things to be checked for VPnS in this router

Your earliest response is highly appreciated

**Anilrgowda** · 22-Feb-2007, 09:34 PM

Putting it in the DMZ allows all traffic which is less secure, but with ISA that should not be a problem, I wouldn't recomend it otherwise. It must be that your WAG200G is not forwarding the appropriate encryption protocol GRE, AH, or ESP (you haven't stated which at this point). The basic port forwarding of 1723 must have been working as you were receiving "verifying user name and password". It is possible this feature does not work on that unit, or were you using AH, which as mentioned is not supported.

Are you happy leaving it in the DMZ, or would you like further assistance?

22-Feb-2007, 09:34 PM	#1 (permalink)
Anilrgowda Administrator Posts: 18,702 Join Date: Jan 2006 Rep Power: 10 IM:	Port forwarding in ADSL router Linksys Actually we had some problem with our old router and today we replaced our router with Linksys model WAG200G. Also we use ISA, for VPN clients we have to forward ports and I have forwarded the following ports also from this new router 50 500 51 1723 After this when VPN dial-up connection is trying to establish connection and it is only showing verifying user name and password. It was working fine with our old router, is there any other things to be checked for VPnS in this router Your earliest response is highly appreciated

22-Feb-2007, 09:34 PM	#2 (permalink)
Anilrgowda Administrator Posts: 18,702 Join Date: Jan 2006 Rep Power: 10 IM:	Re: Port forwarding in ADSL router Linksys Putting it in the DMZ allows all traffic which is less secure, but with ISA that should not be a problem, I wouldn't recomend it otherwise. It must be that your WAG200G is not forwarding the appropriate encryption protocol GRE, AH, or ESP (you haven't stated which at this point). The basic port forwarding of 1723 must have been working as you were receiving "verifying user name and password". It is possible this feature does not work on that unit, or were you using AH, which as mentioned is not supported. Are you happy leaving it in the DMZ, or would you like further assistance?

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