questions about D clone

a few questions.......

1. i've been playing diablo2 for almost a year and have seen soj counter come up once, what gives?
2. can you fight dclone on both nonladder and ladder?
3. can nonladder and ladder person be on same IP?
4. i understand how to check what IP ur in, but how do you change it?
5. is it possible to make dclone spawn singlehandedly?
6. once soj counter comes up, how long do i have to find and kill dclone?
7. and i'm spent

i guess that's more than a few