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Date:      Thu, 17 Jul 1997 23:37:57 -0700 (PDT)
From:      Doug White <dwhite@gdi.uoregon.edu>
To:        Lee Johnston <ljohnston@cyberworld.demon.co.uk>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Adding a subnet to my ISPs routing table
Message-ID:  <Pine.BSF.3.96.970717233526.283H-100000@localhost>
In-Reply-To: <33CE6F3B.41C67EA6@cyberworld.demon.co.uk>

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On Thu, 17 Jul 1997, Lee Johnston wrote:

> If I wanted a subnet from my ISP, what Gateway would be used to setup
> the routing tables for my subnet on my ISP's gateway? Would it be the
> Gateway on our network, or would it be the terminal server that we
> connect to at the ISP's side? 

This depends on the nature of your connection to your ISP.  If you had
just a line of fiber coming down, then it would work something like this:

1.  ISP configures router to route packets for subnet XXX down interface
2.  You reconfig your systems to point at the router for the gateway and
reset their netmasks appropriately.  On FreeBSD machines this means adding
a default route to the gateway, something like this:

route add default 128.223.170.1  

where 128.223.170.1 is your router.  (it's mine 9 months out of the year)

This is a really simplistic case and assumes you don't have another
router-type device (router/firewall) at the end of the feed from your ISP. 

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major
Spam routed to /dev/null by Procmail    | Death to Cyberpromo




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