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Date:      Sat, 13 Nov 1999 07:55:42 -0500
From:      "Troy Settle" <st@i-plus.net>
To:        "Leif Neland" <leif@neland.dk>, <freebsd-isp@FreeBSD.ORG>
Subject:   RE: wasting ip's on dedicated lines
Message-ID:  <NDBBJJENKLPPKCEBOILBEEDGCAAA.st@i-plus.net>
In-Reply-To: <009c01bf2dc5$ad750d80$0e00a8c0@neland.dk>

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Lief,

You can run your connections unnumbered, but this can make it difficult to
troubleshoot some problems.

Alternatively, you can use public address space (10.*.*.*) for your PtP
connections.  This will let everything work normally as far as your internal
stuff goes.  The only side affect would be a strange looking traceroute for
people outside your network.

If you look around, you'll find that most people do use the /30 for their
PtP connections.  It's actually considered 100% usage of your IP space, and
nobody is going to fault you for doing it or ask you to recover that space
before allocation of additional space.

-Troy


> -----Original Message-----
> From: owner-freebsd-isp@FreeBSD.ORG
> [mailto:owner-freebsd-isp@FreeBSD.ORG]On Behalf Of Leif Neland
> Sent: Saturday, November 13, 1999 5:55 AM
> To: freebsd-isp@FreeBSD.ORG
> Subject: wasting ip's on dedicated lines
>
>
> We're going to connect several sites througg dedicated lines:
>
> Our site
>      |
> router   100.100.100.1/24   (cisco 2600, channelized E1 (soon))
> modem
>      |    telco lines
> modem
> router   100.100.101.1/30   (cisco 1005)
>      |
> Fbsd firewall/proxy outside 100.100.101.2/30
>      |                          inside  192.168.0.1/30
>
>
> This means I'll use 4 ip's for each remote site on the cable
> between router and firewall:
> 100.100.101.0: network
> 100.100.101.1: cisco
> 100.100.101.2: firewall
> 100.100.101.3: broadcast
>
> Next site will use 100.100.101.4 to 100.100.101.7
>
> This seems rather wastefull.
>
> Can this be avoided? I could use Sangoma cards in the firewall, I guess.
>
> BTW, Does somebody sell cheap cisco's on the net?
>
> Leif
>
>
>
>
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