Hello I have 2 wrt54g v6 routers and I plan on making a cantenna or some thing of that sort. I would like to set my Mom up with the dsl connection she has at her business. It is a clear line of site, minus a few very small tress. The distance is about 1/4 mile may be a small amount further. I need to know a few things first.

1: how far can the antenna be from the router? I think I have to go like 200 feet from the source to where i would like to mount the antenna., So like would I have to get a booster? or move the router closer to the antenna and get another one for in the office?

2: These routers are not capable of doing a vpn, is there a way I still can do a vpn, or is there something else I can do for security?

3: Do any of you know a good tut for making a cantenna that will go 1/4 mile between these routers?

4: Do I only have to make one antenna and the other will pick it up?

Thankx for all your help in advance. I am new to these terms but am willing to learn.