VPN vs LAN : Connection Issue
I have got a simple VPN via analog signals setup by my ISP. VPN connects three offices geographically separated.
Two branch offices can connect without any problem. But to my head office there are connection issues from the branch offices. From branch office; when I ping to a PC at head office it doesn't ping, when I disable the firewall of the head office PC, ping command is succesful. But at the two branch offices no need to disable the firewalls to ping among those.:confused:
But at my head office the setup is bit complex. We have three gateways (including the VPN router) directly connected to LAN not via a firewall.
The VPN has three subnets for three offices. The two branch offices connects each other without any problem.:)
Do you know what causes this type of problem pls?