I am studying computer security and I was wondering what it means by "the network strict", "waypoints" or "pass through (loose)" as it pertains to the content below talking about routing attacks. Thanks in advanced for any clarification.
- Source routing - this uses an option in the IP header to pre-determine the route a packet will take through the network (strict) or "waypoints" that it must pass through (loose). This can be used maliciously to spoof IP addresses and bypass router / firewall filters. Routers can be configured to block source routed packets.