I purchased a few routers for my test lab. I was wondering how I can obtain the IOS software for use in the test lab?

In my home lab I have 2 2501's connecting to each other through a back to back serial cable to simulate a WAN between two separate LAN's. My question is what is the fastest speed I can get out of this sort of connection. Is this set by the clockrat...

I am unable to get my back to back serial line to stay up. I configure 2 2501 routers as such:Router1e0 - 10.0.1.254 /24s0 - 10.0.2.254 /24s1 - 10.0.3.254 /24Router2e0 - 10.0.4.254 /24s0 - 10.0.5.254 /24s1 - 10.0.6.254 /24Router 1 has the DCE end of...