Dear Krystian Or even maybe better pppoe :) > for user verification pptp can be used. its free :-) > On 5/31/05, cristian_dimache@xxxxxxxxx > <cristian_dimache@xxxxxxxxx > wrote: > Yes, I have this problem too. And I came up with two ideas: one money > comsuming, one time consuming. > Money comsuming: get management switches everywhere, and limit MAC > learning per port. My network amounts to 500+ stations, over a preety wide > area (all on ethernet), costs evaluated at 30.000$. Rather expensive, ha? > Time consuming: get into every windows workstation a program that alows > network connection if MAC is unchanged from the one stored localy in an > encrypted file. > Boss evaluated my ideas, and, guess what? I am now working on the program > described above. > It will be publicly available, of course... >> On Mon, 30 May 2005 20:41:20 +0200 Konrad <kcem@xxxxxxx> wrote: >> >>>Is any way to detect changed MAC adresses? >> I have been working on this for some time. You can try the current >> version: >> http://shurdeek.routehat.org/tmp/dhcpwatch2.pl >> >> (please don't ask how it works, I'm pretty busy now :-)). >> >>>Someone taught change MACs peoples in my network and I have problems. >> Yeah I know, I have seen this too. >> >>>E.g. Two computers working on one MAC, and one IP (static ARP and DHCP). >> Exactly. >> >>>WinXP is screaming some message... that two computers or more have the >>>same IP. >> Actually this happens when people use the same IP but a *different* MAC. >> >> Yours sincerely, >> Peter >> _______________________________________________ >> LARTC mailing list >> LARTC@xxxxxxxxxxxxxxx >> http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc >> > _______________________________________________ > LARTC mailing list > LARTC@xxxxxxxxxxxxxxx > http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc -- Ń óâŕćĺíčĺě, Denys mailto:nuclearcat@xxxxxxxxxxxxxx _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc