[c-nsp] Blocking a Mac address at a router interface

[rwcrowe at comcast.net]

Or if you have a DHCP on that LAN segment, add a reservation for his mac address and give him a bogus non-routable ip address.


--
Rob Crowe 
rwcrowe at comcast.net


-------------- Original message -------------- 

> Chris, 
> 
> What about adding a static arp entry on the router for his mac address 
> pointing to an ip address that he is not going to be using ? 
> 
> Kind regards, 
> 
> Koen. 
> 
> -----Original Message----- 
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Chris Moore - GMD 
> Sent: donderdag 23 september 2004 16:56 
> To: 'cisco-nsp at puck.nether.net' 
> Subject: [c-nsp] Blocking a Mac address at a router interface 
> 
> Hi all, 
> 
> This seems like it should be super-easy, but I just can't seem to figure it 
> out! 
> 
> I have a branch office served by a 1721 router. I have a guy there with his 
> own laptop that he keeps connecting to the network against company policy, 
> changing his IP to evade filters. I know, we should just fire the guy, but 
> company politics, not my decision, etc,etc.......Anyhoo, how can I block his 
> mac at the 1721's Ethernet interface? Unfortunately the cheapo switch in 
> place fails to provide adequate port security. 
> 
> Thanks, 
> 
> Chris 
> 
> 
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