Great Circle Associates Firewalls
(October 1996)
 

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Subject: Re: Re[2]: Protocol Jumping -Reply
From: Richard Gilman <rgilman @ vortexdata . com>
Date: Thu, 10 Oct 1996 13:11:38 -0700
To: bhowell @ snlnet . com
Cc: firewalls @ GreatCircle . COM, sazah @ ibu . sj . nec . com, wombat @ mcfeely . bsfs . org

You might try Novell's IPTUNNEL.NLM. It has some bugs but kinda works
with some older NIC's. Don't try to sync your NDS with it though:-)


Rich(running for cover)


 

>>> Sunny Azah <sazah @
 ibu .
 sj .
 nec .
 com> 10/10/96 10:52am >>>
> 
>      Thanks for the reply.
>      
>      We thought about IP to IP through a "hole" in the firewall, but we are 
>      running cc:Mail on a Novell server running only IPX. The gateway
runs 
>      on NT using commercial software. Since we need to make the jump
to IPX 
>      somewhere along the way, it seems like the mail gateway PC is a
good 
>      place to do that. Rather than punch an IPX hole in the firewall
(which 
>      might be more obvious to exploit) we figured we could just sneak 
>      around it.
>      
>      I'm just curious to know if anyone actually COULD make the protocol

>      and network jump on a dual homed NT 4.0 server. I'm guessing it
would 
>      be pretty tough.

The NT 4.0 server would have to have software to make the translation
from
IPX to IP. I do not know if there is such a beast for NT.

>      
>      I think we will move the cc:Mail post office to an NT server running 
>      IP and resolve the problem.
>      
> 

-- 
sa.

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 ibu .
 sj .
 nec .
 com 

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Indexed By Date Previous: Re: looking for firewall -Reply
From: Richard Gilman <rgilman @ vortexdata . com>
Next: Re: CiscoSecure
From: "Barbara W. Jaarsma" <barbara @ us . checkpoint . com>
Indexed By Thread Previous: Re: Re[2]: Protocol Jumping
From: sazah @ ibu . sj . nec . com (Sunny Azah)
Next: experiences w/stateful inspection vs. proxying
From: "Larry J. Hughes Jr." <larry @ nwnet . net>

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