in reply to CPAN "install" redefines bunches of stuff. Should I worry?

CPAN suggested I try i /log::log4perl/ so I did. This seems to be trying to connect to various servers without actually doing the install (??). I get the same messages, server refuses connection, but it fails much faster. I also needed to turn off my firewall to get it to fail quickly, so maybe my firewall has something to do with it. I also got that the urls in my configuration file might be invalid. Can anyone point me to a tutorial that could help me get these problems sorted out? best regards, thomas.