DSL Modem/Router-->Linksys Router-->PC Port forwarding

[bazabba]

At my office we have Business DSL with 5 IP addresses. SBC gave us a DSL Modem/Router. I connect that router to a Linksys router to share the net to more than 5 machines.

The Modem/Router is an Efficient Networks 5861. A paper given to us has two lists of IP addresses. The first list titled Customer IP's or LAN IP's (for Routers). This list contains the 5 IP addresses given to us (67.121.4x.x). It also lists the gateway address 67.121.4x.x. There is another list titled WAN Side (for Routers). It has one IP address 67.121.1x.x, a subnet mask 255.255.255.252, and a gateway address 67.121.1x.x. In the web interface for the modem/router I forward the HTTP port (80) to the IP address it has given the Linksys router 67.121.4x.x. Then in the Linksys routers web interface I forward port 80 to one of the LAN machines 192.168.x.x

But it wont work. What confuses me is the WAN side IP addresses vs. the LAN IP's. Which am I supposed to try to connect to outside the office? Is there something I may have over looked on either router? Help. Thanks.

 

[bazabba]

any help?

 

[bbqweed]

From outside the office, you will use the WAN side IP address. For the forwarding of port 80, to assign that port to the computer's LAN IP address.

Example:

From outside your own LAN, you would communicate to the WAN IP address (67.121.4x.x)

Your port 80 needs to be forwarded/triggered to ip of (192.168.1.x)

Hope that answered your question.