--5Y5y2FX8vnqwSxRu Content-Type: text/plain; charset=us-ascii 2000-02-14-13:44:09 Julien Nadeau: > A solution would be for kernels to provide an option to keep a > local IP lookup table which could be simply based on network > interfaces; of course, given an stable implementation, this option > enabled by default would take care of spoofing problems for admins > who don't think much about what they're sending out -- i mean, > they're big part of the problem. Linux already has such an option; just go for f in /proc/sys/net/ipv4/conf/*/rp_filter; do echo 1 > $f done and the routing logic will drop packets with forged source addrs. It's not on by default. Yet. I theorize that this will be an option, turned on by default, on most or all routers, before much longer. Kinda like how MTAs switched to disabling open relaying by default when the spammers got to be too much of a nuisance. -Bennett --5Y5y2FX8vnqwSxRu Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.0 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE4qeuAL6KAps40sTYRAbUNAJ9aeX/w1sGVf5pb95urit1rky3VQQCgiey9 Cp3UuIGlj6PaHFp/jfUo6Ls= =1n5d -----END PGP SIGNATURE----- --5Y5y2FX8vnqwSxRu--
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