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Date:      Thu, 19 Aug 1999 19:39:59 +0200
From:      "Langa Kentane" <>
To:        <>
Cc:        "Cisco" <>, "FreeBSD" <>
Subject:   Re: router and firewall question
Message-ID:  <000001beea6f$f4a64780$>
References:  <6D1C7F13995FD11181C108002BB48A1CCDB873@HQASCEXC5>

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Now the other thing I would like to know is how I would go about is that if
I use a private network address of and put up my all my servers
behind it ie: http server, ftp server, mail server (pop3 and smtp) and a dns
server, will I not have problems with that, coz I need the stuff of the
company to be able to connect to these from the internet and the other idea
is that I want them to dial into the C2511 if the don't have a net

The others will work, I think, the http server and stuff by using the host
name instead of the ip but then how will the be able to use the dns server
since that uses an ip address instead of a host name?

PLease help

> Actually what you have below won't work.  The router will think that hosts
> 1-62 are on the local e0 segment - depending on the subnet mask used.  The
> firewall will create subnets on both the secure and unsecure side.  To
> it work this is what I would do:
> R1:
> ip subnet-zero
> !
> interface e0
> ip address
> Give the ISP the rest of the address space back and use private addresses
> for local hosts.  The firewall should do the address translation for you.
> Keep in mind that if you are going to be putting hosts in the unsecure
> of the firewall you'll want to keep some registered addresses.
> Kenny Sallee
> Army Network Systems Operation Center
> Ft. Huachuca, AZ
> DSN:  879-8212
> COM:  520-538-8212
> HelpDesk:  1-800-305-3036

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