Dear Experts.

Currently working on a project and hope you guys will be able to help me out.

I know I will be able to dial from one laptop to another laptop by plucking both to a normal telphone line. The speed that I got will be based on the modem speed that is found in both the laptops.

However, I'm wondering if there's any possibility to achieve broadband speed if I dial up these 2 computers (to each other) using ADSL modems...

Is it that simple? Or do I require any other hardware to achieve broadband speed to connect this 2 computers (not located in the same block, room) through telphone lines?

Please advice.

Thanks.
Derek.

I'm not sure if I completely understand exactly what you're trying to do but I don't think it's possible for standard home users. From what I understand broadband modems deal with connections very differently to dial up modems. As their name suggests, dial up modems "dial up" to the internet whereas ADSL modems more "log on." (This is a very crude way of describing it.) Technically what you are trying to do should be possible I think but I'm pretty sure it would be more complex. I believe you would need more advanced software. However, having said that I am by no means pretending to be an expert on this subject so anybody telling me I'm completely wrong is quite welcome to do so.

No...

Hi,

If you just want to connect two pc's together using your DSL modems there is an option.

Firstly, you need to ask yourself some questions.

Are both your internet connections DSL?
Are you both happy with the speed of your internet connections?
Do you wish you could have a cable running from one PC to another?

If you do, then have a look at VLAN. VLAN stands for Virtual Local Area Network.. which is also called tunnelling.

What this does is (using software) create a secure (as long as you have encryption enabled on the software) to the two pc's (or more!).

What happens is that the software creates a "tunnel" between your PC and the 2nd PC. Essentially, making a LAN connection.. the difference being is that it uses the internet to create the connection instead of cables running in your house.

I don't know the price of this software (or how to set this up) but it may be worth looking into if you set your heart on it.

Just for your info too.. it doesn't matter how far the two pc's are from each other as long as they both have a DSL internet connection (you don't "need" DSL connection as it will work off a modem, but the speed is terrible).

One more thing.. anything you send from and to the 2 machines will be sent.. essentially, if you setup a connection most VLAN software forwards all data sent through the tunnel. There are options to set it up so that only specific data or ports are sent through the vlan so you can still connect to the internet (e.g. websites).

Hope that gives you something to look at.

:D

Not even close...

I, also, don't know too much about DSL, but I'm pretty sure that it doesn't actually dial a connection. If you had 2 DSL modems and both were connected to the internet, you could do as Keith said, and connect the two compters using a VLAN (tunneling, also commonly called a VPN, Virtual Private Network). If this is an option, I would recommend OpenVPN. It is available for different operating systems, it's open source, its free, and its not *too* difficult to set up (all you have to do is make a configuratoin file).

First off, it's not possible for 2 DSL modems to call each other up, as you can with modems.

A couple of previous posters have mentioned using a "VLAN (tunneling also commonly known as a VPN)". Unfortunately they have got their technologies a bit mixed up there. VLANs and VPNs are totally different things, that don't even perform the same function.

However, the suggestion being made to create a tunnel between the 2 laptops is viable using a VPN (not a VLAN), which you would need some software to create the VPN (not sure if Microsoft ships anything these days). You would probably need to make sure that your IP addresses on your DSL connection are static, as if they change (as is quite possible when using an ISP), you would have trouble finding the other end of your tunnel.

Hope this helps

Is it possible to connect two dsl modems too each other directly via a copper pair (not part of a phone network). I have an application for this at the mine site that I work at. I would like to connect my PC in my room to the corporate network which I am allowed to do if I pay for the infrastructure. I have a spare copper pair going to my room so I was wondering if it is possible to put dsl modems at either end to form a bridge. This would be a very cheap way out for me.

Thanks in advance.

cbrazil - As far as I'm aware this wouldn't work either.

When you are connecting to a DSL service with an ISP, the equipment that your DSL modem is talking too at the ISP (or possibly at your Telcos local exchange) provides things such as framing and signalling. If you connect to DSL modems back to back using copper pairs, you don't have anything in the middle that is providing the necessary for the two devices to communicate.

VPN is the closest solution for what you ask. Each computer would ultimately need existing internet connectivity. Sounds like you were trying to avoid ISP/Broadband charges by purchasing 2 DSL modems and calling each other... sorry.

Not that you want to hear it but if one 56K modem calls another they won't be at 56K, they'll be 33.6 if you're lucky. You need lots of expensive upgrades just to handle incoming 56K.