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Subject: RE: IP addressing on firewall
From: mouss (usebsdfree.fr)
Date: Mon Aug 21 2000 - 09:37:45 CDT

At 15:23 15/08/00 +0200, Reckhard, Tobias wrote:
>Hi Manesh, all
>
> > I am thinking of a firewall setup for a small business. Naturally, the
> > firewall box should have two NICs with two IP addresses. The NIC at
> > internet side (connecting to a DSL router) will have a valid IP address.
> >
>A firewall will probably have two or more NICs. I myself prefer not to call
>a Linux box with ipchains or many Checkpoint boxes 'firewalls'. I prefer to
>call network level filters that and application level gateways such. I
>consider either or a combination of both a firewall (or 'firewall system',
>so as to be able to comply at least a bit with the common terminology).
>
>In case I've confused you: there is no standard for the term 'firewall'. No
>one can say that *a firewall* does this or that, can do this or that, looks
>and operates like this or that. It depends entirely on the implementation.

I can :)
A firewall is a system based on hardware and or software and designed to help
you protect a network. It is a tool that performs access control to allow,
reject or
alter packets going through it. The access control may be performed on the
IP packet headers, on TCP/UDP/ICMP/whatever headers, and/or on data.

>[rest deleted, cos' I agree with...]

cheers,
mouss

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