Firewalls: Re: lpr/lpd and firewall

Firewalls
(February 1997)

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Subject:	Re: lpr/lpd and firewall
From:	Ziv Dascalu <ziv @ AbirNet . com>
Date:	Sun, 16 Feb 97 10:43:22
To:	Benedikt Stockebrand <benedikt @ devnull . ruhr . de>
Cc:	Firewalls @ GreatCircle . COM, Doug Kite <dkite @ websgi . icomnet . com>

--- On 15 Feb 1997 11:47:09 +0100  Benedikt Stockebrand <benedikt @
 devnull .
 ruhr .
 de> 
wrote:

>Ziv Dascalu <ziv @
 AbirNet .
 com> writes:
>
>> You can set a rule that only internal network users and SPECIFIC outside users
>> are alowed to use LPR printing.
>
>Great.  A packet filter.  Now what about IP spoofing?
>

Client and server machine can also be identified by MAC address and not just by IP 
!!!
/Ziv

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