Hi , I am looking to move ISP's and hence will have a new range of IP

address's

Currently my BM 3.7 NW5.1 sp5 server is running as a firewall , web
proxy
, vpn server , and generic proxying via ports

Whats the recommended way to reconfigure to the new address range , ?
Do i have to manually reconfigure all the generic proxys i have setup

whose details can been seen via NWadmin ?

Any tips etc much appreatiated

thanks