Lan to Lan VPN and Windows Firewall
Posted on 2008-09-30
I am trying to setup a Lan to Lan VPN between head office and a branch office. The same behaviour is happening whether i set it up for PPTP or IPsec. Everything is connected and i can access router configurations and ping between offices, however i can only browse file shares between pc's on the different networks if i switch the Windows Firewall off on the pc's.
Head Office: 192.168.2.X
Branch Office: 192.168.3.X
Both offices are using a Draytek Vigor 2820n router, and all pcs are Windows XP Pro SP3
Windows Firewall off - all pcs between offices that have file sharing on can browse each other on network and transfer files
Windows Firewall on pcs between offices cannot browse each other or transfer files, but can ping pcs directly from command prompt
" Enabling File sharing, PPTP and VPN options in Windows Firewall
" Making sure at least one folder is shared on each pc in different subnet
" Manually adding TCP port 1723 (pptp) to Windows Firewall exceptions (scope any)
" Enabling netbios over tcp/ip for lan connections
" Disbling all routers firewalls
" Switching to IPSec instead of PPTP, same behaviour
I am following the manual and all info i can find online to the letter, wether i setup as PPTP or IPsec, it is all working fine as long as windows firewall is off. Is there something i'm missing? I would have thought adding the port to the firewall exceptions should fix it?? Any help would be greatly appreciated.