-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/09/2007 07:20 PM, Alan Cox wrote: >> I've been on university systems that use a hotel-like system. On the >> first connection on port 80 to any address, one is directed to an >> authentication page. All access is blocked to any address on all ports >> until that authentication is given. > > Which means an attacker simply sits on the network waits for someone to > authenticate and then takes on their MAC address. > > Alan > I suppose on a wired system, you could map each MAC address to a port on a switch and require re-authentication if the port changes. It gets trickier if this is done on wireless. - -- Steve -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFHDBqweERILVgMyvARAosRAJoDZgCCPOFeEoRqJEhASR6GvCwNaQCeNBxJ CMdxvK43BsS6Kgd6NykM9kc= =A1TL -----END PGP SIGNATURE-----