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VPN Netgear DG834 router problem

We have a Netgear DG834 router, connected to the wan port on an Instagate EX2 firewall/mail server.

The problem I am having is that I cannot VPN the Instagate system from the Internet (i.e. passing through the router).  I have removed the router and VPN'd straight in to the Instagate by assigning the router IP to a laptop - this worked fine, so there is clearly nothing wrong with the wan port on the firewall.

I assume therefore that it is more likely to be a problem with the Netgear router (rather than the ISP).  Incidentally, nat is switched off on the router, and it DMZ's to the Instagate (we then use this as our gateway and 2ndary DNS server).  There are no blocking rules set on the router either.

Firmware version is 3.01.25 by the way.

Any ideas?  I could really do with vpn'ing this box!
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grunners80
Asked:
grunners80
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1 Solution
 
ll_jaxnCommented:
Humm I am confused about you using the Routers IP address on a laptop.
Did you also hook the Instagate to the internet wih an IP...or did you use the Routers internal address?
You sure your firewall is not blocking?
Could sommething be changing the way the laptop ID looks,
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grunners80Author Commented:
I changed the IP on the laptop just to remove the router from the equation in order to check that the Instagate COULD be VPN'd.  It was plugged in on a crossover cable to the Instagate WAN port.

The problem lies in my opinion in the router, although I can't see where - we have another Instagate elsewhere on another DSL line and the same model router, and this works fine (both router's have no custom firewall services defined and both DMZ to their respective Instagates).

I wouldn't imagine the ISP is blocking VPN traffic?
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grunners80Author Commented:
I'm thinking about swapping out this router and seeing if this does the trick!
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grunners80Author Commented:
It was the firmware! Upgraded to the latest version and all is well.  Doesn't really explain what was wrong but there you go.

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Computer101Commented:
Closed, 50 points refunded.
Computer101
EE Admin
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