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I have two networks 192.168.1.0 and 192.168.2.0 and connected with VPN link. i can make remote desktop connections between these two network systems and i can ping and map drive also if I use my router gateway. <br />
but if i use TMG as gateways i can connect remote systems but cann't ping and map drives between networks.<br />
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please help me to solve this TMG problem.<br />

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I have two networks 192.168.1.0 and 192.168.2.0 and connected with VPN link. i can make remote desktop connections between these two network systems and i can ping and map drive also if I use my router gateway. 
but if i use TMG as gateways i can connect remote systems but cann't ping and map drives between networks.

please help me to solve this TMG problem.


using TMG map drive not working

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.

Microsoft Forefront, formerly known as Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache that runs on Windows servers. It includes identity management and protection systems, and discontinued systems for threat management and network protection, along with protection for Sharepoint and Exchange. The scope of discussions includes forward and reverse proxy, application and service publishing, virtual private networks (VPNs), outbound access rules, SSL certificates and network routing within either a single node or an highly-available array pairing.