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2. Sniffing for MAC Address'

 

The first thing you need to understand is UBR's (Gateways).

The following text was put together by

Viiiper

 

2a. Cable Modem & UBR Gateway

 

Cloned modems can only work in a different segment of the cable network from the original cable modem

 

All Cable modems login to the cable network with there unique MAC address. Think of your town/ city as segmented like an orange. We all live in a certain segment and no two MAC addresses are the same. A cloned modem comes online, as long as it is in a different segment of the network from the original, it will work this is because the network primarily checks the cable modems Mac address and does NOT ALLOW 2 identical Mac's to be online [registered on the network] in the same segment.

 

So when you are all requesting Mac's for trade you should actually be asking for Mac's from a different Cable network segment. You may think this obvious but the network does not necessarily follow the physical layout of your town/ city.

 

The segments of the cable network [like the orange are separated], in the case of cable the separation is done by ROUTER GATEWAYS, known as UBR's [Universal Broadband Router].

 

FINDING YOUR UBR is easy

The link given goes to the GRC [Gibson Research Corporation] website [a bit like who is]

https://www.grc.com/x/ne.dll?bh0bkyd2

 

When you initiate the page it will return your full UBR address

[Bottom (4th) box between the "Proceed" Buttons]

 

xxx.xxx.xxx.xxx.cable.ubrxx.shef.blueyonder.co.uk

 

xxx is replacing actual numbers [you won't see xxx on the result]

The information address follows the following format:-

YOU'RE INTERNET I.P / NETWORK TYPE / UBR SEGMENT / YOUR CITY ACRONYM / PROVIDER DOMAIN NAME

For example if it returned a UBR05 this means you're in segment 05 of your town/city

So for MAC trading purposes you need to trade with anyone outside UBR05, for example UBR01. Areas/ cities are normally segmented into approx 10 segments depending on size

 

You should supply TOWN/ CITY ACRONYM & UBR SEGMENT

i.e.: SHEF.UBR05

 

All the Best, Viiiper

                                               
Granty