Are IP assignments on DSL static or dynamic?
This IP address assigned is to a customer automatically via DHCP or PPP, and the customer is NOT guaranteed the same IP each time. If DHCP used, the IP address is leased for a given period, after which the customer must renew and could possibly get the same IP. If PPP is used, the IP stays the same until the DSL line or modem goes down, at which time they must re-authenticate to get a new IP address.