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Re: (ASCEND) Q. Can you run servers behind Pipeline (running NAT)?
That's exactly what NAT is doing...
At 09:12 AM 11/13/97 -0500, Lou Melograna wrote:
>Is there a way to statically map IP bogus addresses to a valid IP address
in order to be hit
>from the outside world?
>
>Lou.
>
>------------------------
> From: Scott Chrestman <src@netropolis.net>
> Subject: Re: (ASCEND) Q. Can you run servers behind Pipeline (running
NAT)?
> Date: Wed, 12 Nov 1997 16:24:56 -0600 (CST)
> To: Edwin Yeh <ery2@po.cwru.edu>
> Cc: ascend-users@bungi.com
>
>
>> On Wed, 12 Nov 1997, Edwin Yeh wrote:
>>
>> > I don't know exactly how NAT works. (I'll be interested to know. All I
can
>> > guess, is that when the packet exists the router, somehow the header
>> > information is wrapped.)
>>
>> From http://www.ascend.com/895.html :
>>
>> When the Pipeline first connects to the NAS, it receives an initial IP
>> address via PPP negotiation. The Pipeline then builds a
>> lookup table that matches the workstation's bogus address with the
>> registered address that the NAS assigns. The Pipeline
>> re-addresses packets destined for your workstation (i.e., destined to the
>> registered address) with the bogus address it actually has.
>> This translation is transparent both to the workstation and to devices on
>> the WAN.
>>
>> >
>> > But can you run servers (such as ftp server or web server) behnid the
>> > Pipeline router (running NAT)?
>>
>> Yes you can run them, but users from the outside world will not be able to
>> hit them.
>>
>> >
>> > In other words, is there a way for outside users to point to a specific
>> > machine inside the NAT subnet.
>>
>> No.
>>
>> >
>> > Thanks.
>> >
>> > Edwin
>> >
>> > P.S. I can think of a solution. That is, don't use NAT and run DNS
after the
>> > pipeline router. The DNS effectively become the router and the pipeline
>> > effectively become a Terminal Adapter. But if this is the case, why
buy the
>> > pipeline. We can do it with ~$150 ISDN TA. We are using pipeline because
>> > it's cost effective for a subnet running multiple machines and the router
>> > performs better than the computer. However, functionality will come
before
>> > performance. If we cannot solve this problem, we will be forced to
drop the
>> > pipeline solution.
>>
>> I totally dont understand what you mean by "The DNS effectively becomes
>> the router", as they are two TOTALLY different things, doing two TOTALLY
>> different functions, but your overall answer is NO. Go buy a Motorola
>> BitSucker Pro for $150, and save some cash.
>>
>> Scott R. Chrestman
>> System Administrator
>> Netropolis Communications Corp.
>> src@netropolis.net
>>
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>
>---------------End of Original Message-----------------
>
>-------------------------------------
>Name: Lou Melograna
>E-mail: Lou Melograna <lmelogra@atrioncomm.com>
>Atrion Communications Resources
>185-I Industrial Parkway
>Branchburg, NJ 08876
>Phone: 908.231.7777 ext.112
>Fax: 908.231.8228
>Date: 11/13/97
>Time: 09:12:07
>"When Quality Counts"
>-------------------------------------
>
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>
Kevin
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