BT Static IP on DDWRT

ogroves

ogroves

ogroves

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27 Aug 2013
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3
I've recently upgraded my BT business hub to a Buffalo Airstation running DDWRT. So far I've setup the router to obtain a dynamic IP, however I want to setup a single server on the network with It's own static IP address. I figured out how to do it on the BTHub, but can't figure it out on the new router. I'd like to keep the whole network NAT'ed and not have to purchase two routers if possible.

In the BT business hub I had it setup as follows (IP's Censored for security):

Code: 
Router Address: 111.11.111.118
 Subnet Mask: 255:255:255:248
 Allow Ping: Yes.

Then on the Server ifconfig was setup as follows:

Code: 
 eth0    inet addr:111.11.111.113    Bcast:111.11.111.119     Mask:255.255.255.248
 lo        inet addr:127.0.0.1            Mask:255.0.0.0

I'm not entirely sure of what to configure on the DDWRT firmware to mimmic this setup

So far I've taken a guess and configured "Advanced Routing" as follows:

Code: 
 Operating Mode: Gateway
 Set Number: 1 (Server)
 Route Name: Server
 Metric: 1
 Destination LAN NET: 111.11.111.113
 Subnet Mask: 255.255.255.248
 Gateway: 111.11.111.118
 Interface: WAN

I've also disabled the firewall temporally for testing, and forwarded port 80 and 448.

And as you can probably guess, I'm having no luck whatsoever. When I try and access the IP, Safari returns "The server where this page is located isn't responding"

It's probably way off track, but I'm brand new to networking so please go easy. If anyone has any ideas they would be greatly appreciated.

Thanks in advance.
 
Are you wanting to assign an internal static IP to your server or a secondary public static IP to your server?
If it's the latter, then have a Google around 'One to One NAT' or 'IP Mapping'; i don't believe it's a standard feature on DD-WRT but i suspect you'll be able to do via ipconfig rules (should be able to, it's linux after all).
 
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