Log into the e2100l router and turn off it’s DHCP server.
Then give it an IP address in the range of the other router’s IP subnet but outside it’s DHCP range.
Then connect the two routers using their LAN ports (sometime marked 1 to 4) and leave the WAN or Internet port of the e2100l router empty.
Once connected, the remaining 3 LAN ports on each are available for local devices.

I tried to remain child-like, all I acheived was childish.

Can it access the othe route wirelessy. I cannot physically connect it to the other router.

1) No switch could do that, was that just to throw me off?
2) Very few home routers can be wireless bridges stock, I doubt any Linksys can
3) Some routers can use third party firmware with more features, but a more complicated User Interface, one is DDWRT.
Your e2100l router seems to be supported by DDWRT.
http://www.dd-wrt.com/site/support/router-database

Once you have that installed, you would need to configure it to be a wireless bridge.

I tried to remain child-like, all I acheived was childish.

It will not let me post a URL to configure client bridging, but on the DDWRT site in the Wiki in the tutorials, you want client bridged
http: www.dd-wrt.com/wiki index.php Client_Bridged
with slashes instead of spaces

I tried to remain child-like, all I acheived was childish.

Thank you. I will try configuring it to be a bridge. I will let you know how it works out.