NLB : how to enumerate connections

Hi everybody,

I have set up the Windows 2003 Server NLB functionality, with two web
servers accessed by a common virtual IP address. I used unicast mode with two
NICs, and defined affinity as single, that is, a client IP is always served
by the same member of the NLB cluster.
Can someone tell me :
1. Until when ? If a client connects to server A, assuming that server A
never fails, does the same client IP still connect to server A 10 years after
?
2. How can I see which IP clients are stuck to a given cluster server ?
3. How can I force a "re-election'" of a client IP, if I want to set it free ?

Thanks for your help ...