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IP addressing scheme

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igolo

IS-IT--Management
Jan 16, 2002
63
US
Will the following IP Scheme work in a frame relay network?

Remote LAN IP Remote WAN IP Remote Subnet
172.16.132.1 172.17.2.132 255.255.255.0
172.16.108.1 172.17.2.108 255.255.255.0
172.16.54.1 172.17.2.54 255.255.255.0
172.16.142.1 172.17.2.142 255.255.255.0
172.16.107.1 172.17.2.107 255.255.255.0

HOST LAN IP HOST WAN IP HOST SUBNET
10.1.1.7 172.17.2.230 255.255.255.252

My big concern is on the host site where I have about 150 wrkstns & servers on the 10.1.1.1 network. I don't want to change the IP addresses of the internal servers (workstations use DHCP) but I also need transparent access from the host site to the remote sites.
Oh there will be at least 120 remote sites.

 
It looks like it should be fine. I'm assuming this is, or will be, a frame relay network. Since all of the sites should show "Directly Connected" when you do a SHOW IP ROUTE from the Router.

You can run EIGRP across the routers to make sure that each Router knows about the others.

Good Luck.
 
No, it will not work. None of the remote wan addresses can connect to the central site wan address.

The logical layout of pvc's will affect how your addressing scheme can look like. I suppose you're planning on a hub-and-spoke topolgy. In that case you will need a seperate subnet for each pvc, and a lot of subinterfaces on the wan interface on your central router.
If you're rich you may go for a full-mesh topology and put all the routers pvc ip addresses in the same network.

Since you're planning on 120 remote sites, you want to run some kind of dynamic routing protocol. Depending on which protocol you choose, there will be issues with routing updates and a frame relay (because f/r networks are naturally NBMA networks.)

My advise is to do some reading about frame relay technology, and maybe seek some proffesional help if you have little or no experience with large and complex wan structures.

 
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