Great Circle Associates Firewalls
(March 1996)
 

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Subject: Re: firewalls-digest V5 #157
From: owen @ DeLong . SJ . CA . US (Owen DeLong)
Date: Thu, 14 Mar 1996 09:08:01 -0800
To: firewalls @ GreatCircle . COM

Turning ip_forwarding off using adb is the same end result as setting the
macro IP_FORWARDING to -1 in SunOS.  Difference is whether you do it before
or after compilation.  The same is true with ndd.  If you build a SunOS
kernel with IP_FORWARDING = -1, and then use adb to change ip_forwarding
to 1, guess what.  It works just fine.

Owen

> From: Jean .
 Chouanard @
 grenoble .
 rxrc .
 xerox .
 com (Jean Chouanard)
> Date: Wed, 13 Mar 1996 11:39:23 +0100
> Subject: Solaris 2 & ip_forwarding
> 
> Hi,
> 
> I know that we could use ndd to turn off ip_forwarding on a Solaris 2
> workstation, but is their a way to disable this feature so that intruder
> can't turn it on again?
> 
> ndd seems to work as turning off ip_forwarding using adb on a SunOS kernel,
> what I looking for is like setting IP_FORWARDING to -1 in SunOS.
> 
> Thanks, Jean
> 
> - ---
> let's all be different, just like me.
> - ---
>     Jean Chouanard                   | Jean .
 Chouanard @
 Grenoble .
 RXRC .
 Xerox .
 com
> Networks & Systems Eng.              |        Rank Xerox Research Centre
>  Fax: (33) 76 61 51 99               |           6, Ch de maupertuis
>  Ph:  (33) 76 61 50 90               |           38240 Meylan FRANCE
> 
> 
> 

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