Port 8000 tends to be shoutcast if im not mistake. If you are trying to do shoutcast on differernt IPs you can set it all in the config to stick the server on certain IP addresses. By default it uses all IPs
; SrcIP, the interface to listen for source connections on (or to make relay
; connections on if relaying). Can and usually will be ANY or 127.0.0.1
; (Making it 127.0.0.1 will keep other machines from being able to
; broadcast using your shoutcast server )
; DestIP, IP to listen for clients on (and to contact yp.shoutcast.com)
; can and usually will be be ANY. If your machine has multiple IP addresses,
; set this to the one you want it to be accessed by.
On another server make a different config and change the command line for shoutcast. In this other config just change the IP to another one you want.
That or make a copy of the shoutcast directory and change the IP in each config.