Squid Server With Multiple Outgoing IPs, each ip with separate login and password

[Франсуа Мартiнес <182soso@xxxxxxxxx>]

Hi!

i am going to buy dedicated server and organize proxy server.
server has 250 IPs.
I want each outgoing ip address to have its own login and password.

so i give client ip with login and password.

so i want to bind each outgoing ip witt login-password.

can someone help me in reccomendation?
thx