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*HELP...setting up static ip on router

post #1 of 7
Thread Starter 
ok so our company just got a t1 and I want to setup a test router.

The IP address from the ISP is ***.***.***.0, which the router, Linksys wrt54gl wont let me set as a static IP.

So the other addresses that I got were:

Mask
Serial IP
Serial Mask
and of course my DNS primary and secondary

why would they give me an IP that ends in 0 that you cant use?
what are the serial IP and serial mask?


Thanks networking gurus!
    
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post #2 of 7
Generally you cannot use an IP assigned by the DNS server as a static IP address, it's best to use a certain set, which depends on the router. I've got your router (among others) and I believe it's fine to use static IP addresses starting at 192.168.1.136 and go up from there for more systems (aka 137, 138, etc).

What did you use to obtain those other addresses?
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post #3 of 7
Quote:
Originally Posted by deskjockey View Post

The IP address from the ISP is ***.***.***.0, which the router, Linksys wrt54gl wont let me set as a static IP.
You are correct 0 is not a valid IP. They might have given you the first 3 octets and the subnet mask so that you can calculate your ip addresses. What subnet did they give you?

Should look like 255.255.255.x? From that subnet you can calculate your gateway and broadcast.
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post #4 of 7
Thread Starter 
Quote:
Originally Posted by decompiled View Post
You are correct 0 is not a valid IP. They might have given you the first 3 octets and the subnet mask so that you can calculate your ip addresses. What subnet did they give you?

Should look like 255.255.255.x? From that subnet you can calculate your gateway and broadcast.
EXCELLENT...yes the mask is 255.255.255.X

so how do I go about "calculating" the gateway and broadcast?

Sorry this kind of ISP side networking I dont know

guru, this is for setting up my router/gateway for a T1
Edited by deskjockey - 5/17/08 at 8:54am
    
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post #5 of 7
I'm a little confused by that one ending in 0 though...is that the IP address you're assigned by the router when you plug a computer into it?
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post #6 of 7
Quote:
Originally Posted by deskjockey View Post
EXCELLENT...yes the mask is 255.255.255.X

so how do I go about "calculating" the gateway and broadcast?

Sorry this kind of ISP side networking I dont know
It's a bit complicated the first time you hear about it. Once you do it a few times its really simple though. Take a read here: http://en.wikipedia.org/wiki/Subnet_mask

Hope that helps.

Edit. You could also call the provider and just ask them "Hey, what's my IP?". They typically don't make you work out your own network because you could potentially mess up other people.
Edited by decompiled - 5/17/08 at 8:57am
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post #7 of 7
Assign your router with the IP : xxx.xxx.xxx.1 to start with. I assume you have a class C address.
Edited by t4ct1c47 - 5/17/08 at 9:31am
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