Who are these irresponsible network operators that allow spoofed source addresses out of their network? There is at least one legitimate use for "spoofed" IPs.

Who are these irresponsible network operators that allow spoofed source addresses out of their network? There is at least one legitimate use for "spoofed" IPs... http://en.wikipedia.org/wiki/Mobile_IP http://en.wikipedia.org/wiki/Mobile_IP Of course this protocol is rarely used and can probably be blocked on most consumer ISPs...