Date: Mon, 06 Sep 1999 21:09:22 +0200 From: Jonas Eriksson <je@interact.se> To: freebsd-isp@FreeBSD.ORG Subject: Re: Really static arp? Message-ID: <3.0.32.19990906210921.00d0a198@smtp1.interact.se>
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At 19:53 1999-09-06 +0200, Bartek Siebab wrote: >Hi! > >I have many malicious users in my LAN. Many of them has >access disabled to our certain services, but if they change >their ip adress we can't filter them by ip. > >User can change ip but his MAC adress is static, but >arp -S isn't solution, because when user has new ip >arp add it to cache and after arp -a we have a few entry >for ip with a few MAC adresses, so trafic is passed from >this ip (currently and temporary not used by other user)! > >How to disable arp from do this? >How to set up arp table really static? >Maybe is there any solutions for ipfw based on MAC? > I've think that this has been discussed on this list before. (or security) Check the archives. -- Jonas Eriksson To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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