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pptp vpn clients are not able to open shared network drives on ISA server

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Last Modified: 2012-05-06
hi, we have the following:´
LAN---ISA SERVER---LINKSYS RV042---INTERNET
We connect using PPTP VPN to the LINKSYS RV042 and from there we would like to run some SQL applications and also see some shared network drives on that ISA server. We created a rule on the ISA to allow acces from the VPN clients into it, the rule was defined to treat the VPN client network as a trusted network so all IP protocol (TPC and UDP) comes in and goes out from and to the VPN clients however we can run any application on any port except for the networking shared drives. Is there anything we can configure on that ISA so we can go to run and type \\172.16.1.1 (actual IP address of the ISA SERVER WAN interface) and the see the shared drives? by default ISA does not allow windows networking on its WAN unless you defined the source IP as trusted is what we thought but still not working. TOPOLOGY changes suggestions are welcome however we were unable to find the way to forward the protocol ESP to and inbound host on this Linksys rv042. thanks
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BembiCEO
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Commented:
If you use the router in front of ISA to establish VPN connections, ISA is not aware about the fact, that this should be an internal user.

I would recommend to use ISA as VPN server. You can arrange that by setting your router to VPN pass through (or by opening the associated ports, if ther is no such setting). In that case, your VPN client is handled by ISA and therefore handled by the VPN client rules. As the client is on the internal network in that case, you can get full access to any internal resources.


Author

Commented:
I understand the suggestion however I couldn`t find the way to port forward the 1753 port and the ESP protocol. Linksys only allows to port forward on TCP and UDP ports, it woun`t do forwarding for the ESP protocol itself so that is why the PPTP VPNs are connecting to the router... We want to keep the router in front of the ISA server for security porpuses. thanks for the reply!

Author

Commented:
Correction. GRE protocol I meant. NOT ESP. thanks
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Commented:
thank you guys

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