I have just installed a simple ADSL modem/router (Linksys WAG354G) for my brother-in-law in his home office.
He has a laptop on a docking station (work- XP pro) and another laptop for general family use.
He is on a dynamic IP from his ISP.
He uses SonicWall to VPN to his company intranet. However, since installing the router he cannot connect to it.
Rest of access to internet etc is fine.
If we reconnect back to the original USB ADSL modem, he gets back onto his company intranet just fine.
I have disabled the firewall in the router, statically assigned an IP to his laptop [work] and placed it in the DMZ and allowed all VPN passthroughs.
So we then phoned his company IT department and they gave us a "not possible from behind a router" answer.
I find this unnacceptable but as I have no experience with SonicWall - I didn't argue with them. But that implies that everyone who VPN's cannot be on a network!!
If it helps, the subnet at his home is 192.168.1.x and the work is 192.168.2.x - so should be no conflict there.
Also, in SonicWall the ports is set to "all" and UDP/TCP is set to "both".
As his company supplies his hardware (except this Linksys router) and software, using a different VPN etc is not a solution.
The obvious workaround is to switch between router and USB modem by just swapping out the telephone line from one to the other - this works but is not really acceptable long term.
Should I be looking for router configuration or changing some setings in SonicWall (not sure how his IT dept would like the latter option!!)?