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TOPIC: Help designing network - desperate

Help designing network - desperate 13 years 2 months ago #8860

Guys & Gals,

I'm in the process of designing a network, which uses supernetting. I am in a nut trying to determine what my host IP addresses will be which are hanging off each router.

If someone could please give me some tips, I would be more than grateful.

My network setup can be seen at members.iinet.net.au/~shahan/Network%20Setup.jpg

Thanks in advance!

Network 13 years 2 months ago #8864

Had a quick look at your diagram. What kind of links are between the routers in Area 0? Are they point-to-point links as the diagram suggests? Or are they some kind of WAN 'cloud'?. I'm not sure how your central routing can work with all your core routers apparently on the same IP network

Re: Help designing network - desperate 13 years 2 months ago #8866

Yes they are point to point links.
The routers are infact Linux PC's acting as routers.
It is all for a computer laboratory.... simulating supernetting concepts etc. But I need the host PC's to be able to demonstrate the whole concept etc.

Re: Help designing network - desperate 13 years 2 months ago #8880

Hmm, I don't want you to change your whole network or anything but wouldn't it be wiser to use a 30 bit mask rather than the 25 and 28 bit masks you have for those point-to-points? That would give you two host IPs plus the network address and broadcast address for each point-to-point link and they would be on their own separate subnetwork.

Now assigning a network address to your LAN segment depends on how many PCs will be connected into it. So I would assign something like 10.0.0.0/29 to your LAN segments if you have more than two connected to each router. Regardless I would calculate the LAN addresses first, and then finish off with the point-to-point links.

Doing it that way will better utilize route summarization I think.

Re: Help designing network - desperate 13 years 2 months ago #8891

LooseCannon, yes I was told that I should use /30 for my point to point links. I think I will do that.

As for the number of hosts, each router has roughly 4 -5 hosts.
I am going to re-draw the diagram, adding hosts etc, hopefully that should clear it up some more.

Re: Help designing network - desperate 13 years 2 months ago #8892

Ok guys, I've uploaded a new pic with the hosts connected.
members.iinet.net.au/~shahan/NetworkSetup2.jpg
Should be clearer now.... I hope ?
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