Andre Oppermann 22b5770b99 Add the option versrcreach to verify that a valid route to the ... source address of a packet exists in the routing table. The default route is ignored because it would match everything and render the check pointless. This option is very useful for routers with a complete view of the Internet (BGP) in the routing table to reject packets with spoofed or unrouteable source addresses. Example: ipfw add 1000 deny ip from any to any not versrcreach also known in Cisco-speak as: ip verify unicast source reachable-via any Reviewed by: luigi		2004-04-23 14:28:38 +00:00
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ipfw2.c	Add the option versrcreach to verify that a valid route to the	2004-04-23 14:28:38 +00:00
ipfw.8	Add the option versrcreach to verify that a valid route to the	2004-04-23 14:28:38 +00:00
Makefile