PDA

View Full Version : Static routing public IP's question?


simcor23
01-24-2006, 09:18 AM
Hello everyone,

I am trying to WRAP my head around this. (no pun intended!)

I will be providing wireless service strictly for businesses. I have 2 class C

I will subnet these class C's so that each client gets 8 Public IP's (5 usable)
1 to signify subnet 1 for there router? 1 broadcast my router? Leaving 5 usable.

I am fairly new to static routing so please coorect me if I am wrong. The big question here is how I assign the clients there IPs? More specifically, which interface of the cpe gets what address and which inteface on my AP gets what address. I do not want to NAT everthing will be static routed.

Also where do I assign broadcast address for client . Most clients will have there own router to which I will assign Their public IP. If they have their own router will I lose more public ips?

Sorry that is alot of questions in one post, but if someone could answer at least one of those it would surely help. I am very close I think I might be overanalyzing this and confusing myself.

lonnie
01-24-2006, 10:00 AM
You assign the public block of 8 to the Ethernet device that connects to their switch. It gets the first IP after the network IP, and we assign the client ones from the highest IP, just below the broadcast IP. Ideally this should be on your wireless client router or else you have to deal with their router for assignment and DHCP, etc.

simcor23
01-24-2006, 10:06 AM
Thank you, that makes alot more sense now. I am almost there. One more question:

What do I assign the wireless interface of their client and my AP?

Do I use private address like 10. or 192.? Then static route back to my AP's public IP through the private address?
I guess that was 3 more questions.

simcor23
01-24-2006, 10:16 AM
Another question.


If the client insists on using there router could they just use 1 of their 5 usable ips on the wan port connecting to the public ip on the wireless client router?

lonnie
01-24-2006, 11:25 AM
Use a private for all of your internal LAN. That keeps guys from outside hacking at you. If you have guys insisting on using their router then split out some /30 or .252 subnets point to point use from your Ethernet to their router Ethernet WAN. They will then require privates on their LAN.

simcor23
01-24-2006, 02:45 PM
If the ethernet of my AP is a public addresss and the ethernet of the client is public what do I put for the wireless of the ap and client? I understand having my internal network private away form hackers. And splitting up a /30 if they want to use thier router. But lets forget about their router for a min. I am mostly confused as to what addresses the wireless cards should have if any.

Do clients in client mode not bridged associate on the MAC Layer or IP layer?

lonnie
01-24-2006, 04:09 PM
Just build your LAN in segments. Every AP has an IP from a subnet and all clients have an IP from that same subnet. Repeat as often as necessary and just record the IP addresses that you are assigning. Never bridge. Route.

simcor23
01-24-2006, 04:27 PM
Great!


Thanks