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Network Security Firewalls
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Re: layer 2&3 firewall/filter?

Subject: Re: layer 2&3 firewall/filter?
Date: Tue, 28 Feb 2006 08:14:34 +1000
Hi,

On Sun, 2006-02-26 at 04:58, coder wrote:
Hi everyone,

I was just wondering, are there any firewalls/packet filters that filter at
layer 3 & layer 2?
Because I want to filter by MAC address as well as IP address... also if the
firewall/filter logs which MAC address has which IP address,
I think I can do some simple Intrusion Detection.

The only MAC addresses you will ever see are for the local LAN segment.
If your attacker is not on the local LAN you'll see the MAC address of
the router they passed through to get to you. MAC address filtering is
basically useless.

Colin
-- 
Colin Campbell
Unix Support/Postmaster/Hostmaster
Citec
+61 7 3227 6334

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