[ubuntu-uk] Hooking up a machine running Ubuntu to a Mark 1, BT HomeHub

Rowan rowan.berkeley at googlemail.com
Thu Feb 19 18:25:18 GMT 2009

If you don't wish to be patronising, then don't BE patronising. Assume 
that I am as competent with the hardware as you are.

Liam Proven wrote:
> Rowan, it seems to me that the good-natured suggestions of people
> trying to be helpful here aren't getting you anywhere.
> Here is an overview of the situation, as we understand it, trying
> "blind" to work out what's going on.
> [1] The HomeHub has an Ethernet port. So does your Linux PC.
> [2] Now, normally, Ethernet requires little to no configuration. What
> should happen is this:
> [2a] you plug a cable into the H/hub
> [2b] you plug the other end into your PC. The link light should then
> come on, usually, green. Shortly afterwards, the traffic light should
> come on, often yellow and flickering as information flows.
> [2c] The PC gets given an Internet address automatically by the H/hub.
> This usually requires no intervention from you and no configuration.
> Most routers use the official private range, 192.168.x.y where /x/ and
> /y/ are numbers in the range 1 to 254, e.g. or
> The H/hub has one number - often the lowest, either
> or - and the PC gets another, similar number
> with the last octet - the digits after the 3rd & last dot - different,
> e.g.
> [3] That's it. You're online.
> All the mucking around with setup CDs and things is marketing
> b*ll*cks, basically. It's not needed.
> Now, we need to know at which stage this process is failing for you.
> It sounds like you have a problem at stage 2b: getting a link. We've
> more or less established that Linux knows you have a network port and
> that means it should be working. If it doesn't appear in the Ubuntu
> status bar, it is because nothing is connected to it and it's not
> "live".
> Things you could try:
>  - a different Ethernet cable.
>  - try the same cable but with the ends reversed: put the hub end in
> the PC and the PC end in the hub.
>  - try the same cable in another PC to see if that works as it should.
> (I am not sure from what you've written if you've done this already.
> You say that your Windows machine can connect, yes? Is that using the
> same cable?)
>  - try to borrow another router or something similar to see if another
> device gets a link light and an IP address. For testing, it doesn't
> matter if this other router is configured for your Internet connection
> or even attached to it - just plugged into the mains and turned on
> should be enough.
> Without wishing to be patronising, are you 100% sure you have a
> proper, good, known-working Ethernet cable? It is possible to use a US
> telephone lead - they will plug into Ethernet ports and even click
> into place, but they won't work. The plugs are similar but the US
> telephone one is smaller.
> Normal Ethernet plugs are called RJ45 connectors:
> http://en.wikipedia.org/wiki/File:Ethernet_RJ45_connector_p1160054.jpg
> US telephone connectors are type RJ11:
> http://en.wikipedia.org/wiki/File:Rj11_connector.jpg
> They are very similar. You will probably find that your Homehub
> connects to the microfilter in your telephone socket with an RJ11
> cable. Using RJ11s by mistake is a common problem.
> It won't help, but if you right-click on the top panel, pick "add to
> panel" and add the Network Monitor applet, you will get a permanent
> network-status indicator that appears even if the link is down. That
> might help.

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