Stupid question but....

[Mr Pecker]

I have just signed my father in law up to F2S. I was having problems with my old modem which he was using (turns out noit to be vista compatible). I took my Linksys router to his house and plugged it in. Broadband straight away no problems.

I was under the impression that the ADSL checks the phone line etc. The ADSL username on the router related to my phone number not that of my father in law.

Is this correct?

[acidtechno]

You were able to use the internet (meaning browsing etc) using the router which had your username and password in it, but at your father in laws house?

I don't think that is possible..

Your router should be able to sync with the exchange anywhere, but if the user and pass are wrong and not tied with the correct phone number then it should then fail the authentication process.

[mrjones]

Is it possible that due to you using the same ISP that it doesn't actually check what phone line you are connected from?

ie. it doesn't use caller ID for broadband?

Does it happen like this?
BT (Wholesale) routes any packets from a particular line to the correct ISP for authentication, when it gets to the ISP they don't care from where it came from cos BT would only have send the correct ones to that ISP.

It was just a quick thought, if i'm wrong blame the wine.

[acidtechno]

It should be impossible, each user gets their own static IP address which should be assigned to their phone number and log in details.

If you try and log in with different user and pass it should fail authentication

[mrjones]

I know the phone number is part of the login details, but could it be that the actual phone number of the line you're on isn't passed along as part of the authentiaction?

Since, Mr Pecker took his router from his house to his father in law's house, he was only trying to connect from one place, so it could look to F2S' authentication servers that he'd switched off his router, then switched it on again later.

[acidtechno]

you are saying his username and password could connect at another F2S enabled users home, and assign the other users IP to his username and password.

Well, maybe it does work? but I am waiting confirmation that he had full access to browsing and internet functionality, and that it wasn't just a sync to the exchange on the router, without authentication.

[nettech]

http://www.thinkbroadband.com/guide/...ntication.html

there is a "pre-authentication" performed by BT on the username+password. Although I don't think it's mentioned in the above site I was under the impression (from what I have read elsewhere) that this authentication also checks that the username+password is being sent by the correct phone line

As for the IP address, I don't think there is any check as such, f2s just assign the IP based on the username+password that was already authenticated

[mrjones]

Originally Posted by acidtechno

you are saying his username and password could connect at another F2S enabled users home, and assign the other users IP to his username and password.

Quite possibly.

I think that BT Yahoo uses the same username password combination for all users, so in that case I'd say the phone number part of it is only used during the early stages for BT steer the authentication parts towards the correct ISP.

[Mr Pecker]

Originally Posted by acidtechno

you are saying his username and password could connect at another F2S enabled users home, and assign the other users IP to his username and password.

Well, maybe it does work? but I am waiting confirmation that he had full access to browsing and internet functionality, and that it wasn't just a sync to the exchange on the router, without authentication.

Yes. I then changed the router to the correct settings as I was worried that the username/password were not working. This worked too.

When I went back home and plugged it in with his details on my line it too worked. I am on gw4 he is on gw2.

I had full access and was able to use live chat with the usb modem provider to get confirmation that it did not work with vista.

He is now going to buy a router. Interestingly, I will see if I ca connect with his username when he is also connected and keep you posted.

[atsw]

A while back my Sister, who is with PlsuNet, took her router to my brothers house, who is also with PlusNet. Without changing any of the login details, she connected her router to his phone line and it connected and worked. Like many here, I didn't think that should work, but it did.

Andrew

[Andrewr_f2s]

You will be able to use your father in laws details but would not advise doing this simultaneously. Both lines would be set up for the F2S Domain on the BT radius. However having a duplicate session will cause routing issues. This is because each user has a static IP with their F2S account and the traffic will not know where to be directed to. Kind of like having two computers on the same network. Tend to get limited or no connectivity error come up on XP.

[Mr Pecker]

Thanks.

I dont think I will try that then. probably cause more problems than its worth.

[acidtechno]

Originally Posted by Andrewr_f2s

You will be able to use your father in laws details but would not advise doing this simultaneously. Both lines would be set up for the F2S Domain on the BT radius. However having a duplicate session will cause routing issues. This is because each user has a static IP with their F2S account and the traffic will not know where to be directed to. Kind of like having two computers on the same network. Tend to get limited or no connectivity error come up on XP.

Interesting, so you are saying using a certain f2s user and pw for connection, it has a fixed IP assigned to those details - and not the actual phone number.

If 2 people were to use the same log in details at the same time from 2 different locations who were able to connect to f2s (as in the case of this topic), then they would both be allocated the same IP at the same time, which would then cause possible problems you describe?

[kmount]

Yes, you can authenticate using someone elses f2s credentials on your f2s line. - Tested that one out.

However, its not possible for the same ip to be allocated twice since it will be in session so a second log in will fail. (In theory).

You used to see if it you kept rebooting your router, you'd get a 'stalled' session whereby you couldn't log in until that timed it self out.

Same principle.

[mrjones]

Mr Pecker,

It was well worth asking, and it wasn't a stupid question at all.

[Mr Pecker]

Thanks all and perhaps this thread should be closed now?

[segedunum]

Originally Posted by acidtechno

You were able to use the internet (meaning browsing etc) using the router which had your username and password in it, but at your father in laws house?

I don't think that is possible..

Yes, you can do that. I got a couple of Lumison connections mixed up once, and it caused me a bit of head scratching before I realised the mistake.