Tech Support > Computers & Technology > Internet & Broadband > How To See BT Router
How To See BT Router
Posted by Rolo Malibu on September 24th, 2004


Hi there.

I've recently migrated my broadband connection to PlusNet, but am
having probs setting my hardware up. This is probably a very basic
networking question, but I'm no expert on networking. Any help would
be appreciated.

Right. I need to connect to my BT router to change my username and
password from my old Easynet ones to my new PlusNet ones, but I can't
figure out how to connect to the router :-s.

I've set my machine to DHCP, and it does get assigned an IP address
from somewhere (169.254.32.28 - what is this address?), but no other
details show on IPCONFIG.

I understand that the internal address for the router should be
192.168.254.254, but when I try and connect to this I get nothing, and
nothing at 192.168.0.1.

I've removed my firewall, and everything else from the setup, so it's
just one PC straight into the back of the router now.

Any ideas? Do I need to set the gateway to this 254.254 address
somewhere maybe?

Much thanks.

KR.

Posted by Paul King on September 24th, 2004


Rolo Malibu wrote:
It seems like you've forgotten what the IP address of your router is. The
best way around that would be to do a "manual reset" of the router. Do this
by pushing an unbent paperclip (or such) into the little hole marked "Reset"
on your router. This will set all of the router defaults to their factory
settings. Then find the manual which came with the router and go from there.

Alternatively, come back with the make and model of your router and someone
on here should be able to help.
--
paul.g.king@theobviousdsl.pipex.com
Reply address is spamtrapped. Remove theobvious for valid e-mail address



Posted by Dave J on September 24th, 2004


In MsgID<1096022503.713543.306190@k26g2000oda.googleg roups.com> within
uk.telecom.broadband, 'Rolo Malibu' wrote:

I'll be interested to hear more about this, though on first glance I
wonder if your router is actually working as a DHCP server.

The IP block around your IP is mentioned in RFC 3330

169.254.0.0/16 - This is the "link local" block. It is allocated for
communication between hosts on a single link. Hosts obtain these
addresses by auto-configuration, such as when a DHCP server may not
be found.

Other than that (and perhaps slightly more helpfully <g>) have you
tried doing a traceroute - using the 'tracert' command under windows -
to an external address?

I imagine that the first result from say 'tracert 216.239.37.99'
(entered from dos command line) would be the IP of your router. I
don't think you'd need an active external connection for that to work.

Corrections anyone?
--
Dave Johnson - requiem@freeuk.com

Posted by Michael Chare on September 24th, 2004


"Rolo Malibu" <kingrolo@gmail.com> wrote in message
news:1096022503.713543.306190@k26g2000oda.googlegr oups.com...
This is an IP Autoconfiguration address which the PC has generated because it
has not got a response from the DHCP server.

I have a laptop which keeps getting an address like this at random for reasons I
can not work out. If I am lucky I reboot and I get a proper address.

If I rung winipcfg on Win 98 the address is specifically called an IP
Autoconfiguration address.


Michael Chare




Posted by DMG on September 24th, 2004


Your router's address may be 192.168.1.1; that's the address of my BT
Voyager. Type this address into Internet Explorer and it should take you
straight to the router front page. From there you can access the setup page
to input your username and password.

You will want the router's DHCP to assign IP numbers, *not* your PC. You
will probably find that DHCP on the router is set on by default; if not
switch it on (having first made sure that you switch Windows DHCP off on
your PC). You may need to re-boot your PC after switching DHCP off.

"Rolo Malibu" <kingrolo@gmail.com> wrote in message
news:1096022503.713543.306190@k26g2000oda.googlegr oups.com...


Posted by Zomaar on September 24th, 2004



"Rolo Malibu" <kingrolo@gmail.com> wrote in message
news:1096022503.713543.306190@k26g2000oda.googlegr oups.com...
If you are using the 5861, there's some good info here...
http://www.uk-bug.net/modules.php?op...ticles&secid=2

HTH, Ali



Posted by cw on September 25th, 2004


"DMG" <dmcginlay@remove.hotmail.com> wrote in
news:B92dneG2LZz9o8ncRVnyjA@pipex.net:

That's not going to work whilst the computer is running off the auto-
config DHCP failback address.

My advice would either be as someone has said, find the factory defaults
reset button and figure out how it works. Some routers just require it to
be held down for x amount of time whilst others require it to be held
down whilst the router is powered on.
It should come back up with a DHCP server running.

If you can't get that to work, manually assign an IP (say 192.168.254.253
if you think the router is on the IP 192.168.254.254). Then put the IP
into your web browser and hope you got it right.

--
Colin
*Drop DEAD from the email address to reply*

Posted by Kráftéé on September 26th, 2004


cw wrote:
If it's a 'liberated' BT router then the above may get you to the login page
_but_ without resetting the kernel (which I understand is possible without
the propietry softwarebut haven't tried it) it will not do you much good at
all as you still won't know the IP table which has been programed into it.

There used to be a couple of sites telling users how to 'crack' these
routers but I paid little interest when they bandied around on the
newsgroup. sorry...



Posted by Meurig Freeman on September 26th, 2004


Michael Chare wrote:
Instead of a full blown reboot you could try running ipconfig /renew

This forces all adapters to try and renew their dhcp leases.

--
Meurig
(http://xboxmods.meurig.com - modded xbox for sale)

Posted by Wolo on September 27th, 2004


Thanks for all the info! :>

I managed to connect to my router and change my login details. I used
the old address it was running on when I was with Easynet. I didn't
realise it would have this set somehow.

Still no connectivity though - I think the router's having an identity
crisis.

When I was with Easynet, I had a 2mb line with static IPs. I've now
migrated to PlusNet. For the purposes of getting this to work I have
just the BT router and one PC running XP.

The only way I can get the machines to recognise the router is if I use
my old Easynet settings, and connect to it via the gateway address it
had when I was with Easynet. Doing this I can access it via my
browser. I changed the router login details to my new PlusNet ones,
and it connected okay. So the router can see the Internet, and my
machines can see my router, but my machines can't see the internet :-s.

I tried using the PlusNet config info in the online help, and spoke to
their helpdesk and tried using:

PC: 192.168.254.100
Router: 192.168.254.254
Subnet: 255.255.255.0

But my machine is unable to browse to the router at all on this
address.

So is the BT router configured with a local address for the network?
How can I change this, or does it require a BT engineer? I'm led to
believe that my router only wants to play on it's old address.

I tried resetting the router with that little hole at the back by
putting the end of a paper clip in there and holding it for 5 secs. It
didn't seem to do anything of note so I presume that didn't reset it
:-s. If I can reset it, would that restore it to the default
192.168.254.254?
Any ideas, anyone?

Thanks for your help - much appreciated.

Posted by John on September 27th, 2004


Wolo wrote:

the same as the address you are able to browse the router on.

JP

Posted by Wolo on September 27th, 2004


I was using the PlusNet DNS servers rather than the Easynet ones, but
all the testing I've done has been with IPs rather than DNS names.
Definitely not a DNS issue.

I put the details in manually so that the gateway is set to my old
gateway addres, ie, the address I can see the router on (x.x.x.177),
and set my machine's IP manually to x.x.x.180, with a class C subnet.


Posted by John on September 27th, 2004


Wolo wrote:

does it get if you tracert to one of these.

Are there any settings left over from easynet in your
InternetExplorer/Properties/Connections - cache/proxy settings perhaps

JP

Posted by Wolo on September 27th, 2004


Can't ping external IPs, no. I can't remember what happened when I
tried a trace. Will check again tonight. It either made one hop to
the router and then none, or didn't make any at all. Will check.

I definitely wasn't using a proxy, and can't remember there being any
Easynet specifics in that area. Also, I'm testing connectivity by
pinging, and such ping shouldn't be affected by the settings you
describe (I think?).

Thanks for your response.


Posted by Alex Heney on September 28th, 2004


On 27 Sep 2004 03:39:58 -0700, "Wolo" <kingrolo@gmail.com> wrote:

Why do you want to change it?

In changing from Easynet to Plusnet, the *external* settings will
obviously have to change, although even there, with most routers, you
can just let them pick up most of the details automatically. All you
need to give it are the username and password.

But there is no reason to change any of the *internal* settings (i.e.
the IP address seen by your PC). You should leave that set just as it
was, and have your PC set just as it was, unless you had DNS addresses
set manually to something beyond the router.

If you really want to change it, then do you have a firewall on the
PC? If you do, then that may well be preventing you from accessing
anything outside the "trusted" network directly.

--
Alex Heney, Global Villager
Well, to be Frank, I'd have to change my name.

To reply by email, my address is alexATheneyDOTplusDOTcom

Posted by Wolo on September 28th, 2004


I wouldn't have thought I'd need to change the internal settings
either, and indeed this is the only way the router will allow me to
connect to it via a browser, but the point of the matter is, it does't
work. The router sees the net, my machine sees the router, but my
machine deosn't see the net. I think it's configured to broadcast
externally via the old address, but of course, this isn't configurable
without getting into the IOS and I don't have a crossover cable. Why
oh why can't these settings just be configurable via the browser!? I
agree that I wouldn't have thought I'd need to change it internally,
but then again, it's only acting as a gateway to the net. I guess I'll
find out tonight.

Have removed everything else so it's just one PC and the router
(although have tested with a laptop as well to check it's nothing
obscure).

I have someone coming over this evening with a crossover cable to get
into the IOS and reconfigure it. I'm fairly certain it's insisting on
broadacsting with the old Easynet IP, and the PlusNet network doesn't
like it, but we shall see.
Cheers - please feel free to challenge on anthing I've said above.