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Routing thru ISA server-Is it possible?

By ppoll ·
I have a complex network setup. I have a remote office in NY that is connected to my main office in NJ with a dedicated frame relay line. They are part of one Windows 2000 domain and I need full connectivity between them. Besides for connecting the two offices I'm also getting my internet connection through the same frame relay line. I therefor need to set up a firewall in front of both my NY and NJ frame relay connections. But I want to let all traffic from NY (192.168.2.x) to NJ(192.168.1.x) through without being blocked by the firewall. What would be the simplest, most reliable way to do that. I tried setting up a gateway to gateway VPN through ISA, but it does not seem to be so reliable. I also don't realy need the overhead of a VPN asthe traffic is not going over the internet. Can I just add the remote subnets to the LAT in ISA and have RRAS route it? Will that work? will it be secure? Please advise me what's the best way to go about this. Any advice is greatly appreciated!

Thank You.

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Routing thru ISA server-Is it possible?

by nschulz In reply to Routing thru ISA server-I ...

Don't you have 2 circuit ids for your frame relay coming into the main office for the 2 routes: 1 for internet traffic and 1 for the remote office? You should be able to route the internet traffic to the firewall through 1 interface and route the remote office directly into your network through another interface based on circuit ids. You just need a router with 3 interfaces: 1 to connect to the frame relay connection and 2 ethernet connections.

Thanks Norm

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Routing thru ISA server-Is it possible?

by ppoll In reply to Routing thru ISA server-I ...

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Routing thru ISA server-Is it possible?

by NetTek In reply to Routing thru ISA server-I ...

I believe your setup would work as follows:
For Internet:
LAN <-> ISA <-> Firewall <-> Router (Internet CSU/DSU) <-> Internet
For WAN:
LAN <-> Router (Private WAN CSU/DSU) <-> Frame Relay WAN <-> Router in NY

You may use a single router with multiple interfaces, or dual routers. Notice the ISA server would have two NICs, one connected to the LAN side and one connected to the Ethernet port of the router.

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Routing thru ISA server-Is it possible?

by ppoll In reply to Routing thru ISA server-I ...

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Routing thru ISA server-Is it possible?

by ppoll In reply to Routing thru ISA server-I ...

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