access share file using VPN

I have been trying to solve the following issue for more than 2 months but no result:

My problem is:
I have a VPN connection between two ISA servers. How can I access files behind ISA server: see following diagram:

Fileserver------ISA2 (VPN)--------------------- ISA1 (VPN)
10.10.1.1          VPN IP:192.168.1.1            VPN IP:192.168.1.2            
255.255.0.0            55.255.255.0                   255.255.255.0           

ISA2 LAN IP:  10.10.1.3
ISA1 LAN IP:  10.10.1.3

ISA1 can access files on ISA2, but cant access share files on Fileserver? Cant even ping 10.10.1.1 from ISA1.

The problem is; because ISA1s local IP address is 10.10.1.3, then if I try to ping or access 10.10.1.1 on the other side of network, it will try to reach the destination using local network card because it is same IP range NO the through VPN, if I disable local network card on ISA1 (10.10.1.3) then I will be able to access 10.10.1.1.  

HOW CAN I MAKE 192.168.1.2 DEFAULT NETWORK CARD??

thanks


rawandnetAsked:
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Keith AlabasterConnect With a Mentor Enterprise ArchitectCommented:
This is a duplicate of your other question - just worded differently so I will not respond to this - although others might of course.
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rawandnetAuthor Commented:
thanks keith, if found the ansawer by my self, the problem was, I had to change one of the site IP to different I addresses or to different subnet.

thanks

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rawandnetAuthor Commented:
thanks
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Keith AlabasterEnterprise ArchitectCommented:
As per your linked question :)

Thanks
Keith
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