Great Circle Associates Firewalls
(October 1996)
 

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Subject: Re: Re[2]: Protocol Jumping
From: sazah @ ibu . sj . nec . com (Sunny Azah)
Date: Thu, 10 Oct 1996 10:52:48 -0700 (PDT)
To: bhowell @ snlnet . com
Cc: sazah @ ibu . sj . nec . com, wombat @ mcfeely . bsfs . org, firewalls @ GreatCircle . COM
In-reply-to: <25c11aa0 @ snlnet . com> from "bhowell @ snlnet . com" at Oct 9, 96 04:57:23 pm

> 
>      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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References:
Indexed By Date Previous: NISPLUS and FIREWALL 1
From: Raymond Sleiman-Gestronic Systems Integration Manager <Raymond . Sleiman @ mail . gestronic . ch>
Next: Re: Sniffer detection.
From: b <b @ iquest . com>
Indexed By Thread Previous: Re[2]: Protocol Jumping
From: bhowell @ snlnet . com
Next: Re: Re[2]: Protocol Jumping -Reply
From: Richard Gilman <rgilman @ vortexdata . com>

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