SYN spoofing

Wed Jul 28 15:54:03 UTC 1999

% 	ip verify unicast reverse-path
% 
% and according to Paul Ferguson (co-author of RFC 2267) it's in use by
% many ISPs. Apparently this is very-low overhead. Paul has also indicated
% the use of extended access lists on Cisco routers is very low overhead,
% especially on routers using distributed express forwarding.

	while i hate to question mr. ferguson, it's my understanding
	that many isps have found this feature to be unusable due to
	network design.

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bryan s. blank                                             bryan at supernet.net
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