Dial In VPN IP issue

dl763 · 8 Jun 2009 at 14:46

Hi all!

Heres a quick problem for you. We have another client who has a Draytek 2820 router with VPN configured to allow us to dial in to their network. I just try dialling in successfully but Windows and ipconfig show different ip addresses.

Windows shows the correct IP as configured on the router but
ipconfig shows a 169.X.X.X address.

I can't browse any network addresses and have to connect to the router via the external IP.

Any ideas? I'm using Vista at the mo.

Jon

howler · 8 Jun 2009 at 15:29

that 169 address is probably a default address for an adaptor that cannot obtain an address by DHCP

Need more info on your network connections

madman045 · 8 Jun 2009 at 15:49

Whats your internal IP range, whats theirs and whats handling DHCP, the Draytek or a server at their end?

dl763 · 8 Jun 2009 at 17:09

We have our internal network here running on 172.16.0.X and their network on 192.168.1.X. They use DHCP through the Draytek router.

When it dials the connection it gets the correct DNS etc but the IP just doesnt want to be retrieved. It is set on the server to use 192.168.1.99 but just wont have it.

It works on other VPN connections we dial though...

Trinitrotoluene · 14 Jun 2009 at 04:06

If you have a reservation set up for it try getting rid of the reservation and see if it gives you an IP. If it doesn't do you have ISA on the network?

GhostlyPea · 16 Jun 2009 at 20:16

Possible ACL on a router interface blocking the DHCP transaction?

- Pea0n

m4cc45 · 17 Jun 2009 at 07:18

You could set your IP manually and then test it. Does everything work okay? Also check the firewall logs to see if something is blocking DHCP, etc. to the VPN zone.

M.