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Sharing A Dsl Line


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#1 jeremiahbear

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Posted 24 March 2008 - 02:36 PM

I will try to explain the how and why as well as the what. Here goes:

My father owns an automotive parts business. It is a national chain. The business system that they use likes to control everything computer oriented. This includes the DSL line which, my father pays for out of his pocket. They have horded the network firmware and set passwords and firewalls up throughout their system. It allows for very minimal internet access. My father does have a PC in his back office that is not part of this network. He would like to use his DSL line that he is paying for, for other things besides the company dialing in remotely to make price or inventory updates. He requested they help him do this and they did. Sort of. The PC is now bound by their same firewall system and blockers. It sucks. I know just about enough about computers to know everything except how to help with this problem. Can I use a hub, switch or router, to share the DSL line, so that both computer systems can access it and not be affected by each other? Or not change the IP address of the computers on the business system network?

Thank you for any help you can give

Edited by jeremiahbear, 24 March 2008 - 02:36 PM.


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#2 Animal

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Posted 02 April 2008 - 11:37 PM

Since it appears you are dealing with a 'turn key' franchise type organization. I'm sure there are legal documents signed as to what each parties responsibility in what they provide the business. Your Dad's responsibilities as you have explained is a DSL line. Is it to be a free and clear one? Meaning unshared by any other usage? I don't know the answer to that.

Would actions on your part regarding the DSL line, put the contract with the business service provider at risk? I don't know that either. But those are possibilities.

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#3 jeremiahbear

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Posted 10 April 2008 - 11:04 AM

I completely understand. Does he have a written agreement with them that binds him in any way? I don't know, but I can find out with a phone call. I did not use the name of the company, only to keep any problems from arising if I had used it in your forum. There is nothing covert about me doing this, we just aren't getting the support that he pays for, and there are really no options or other business system providers that I know of for this national auto parts chain. He has owned the business since 1981 and in my opinion, the computer side of it, is a monopoly. I disagree with the un-openess of it. I know that's not even a word, but that's the best way to describe it. Anyway, I do appreciate your help and I understand where you are coming from completely. Nonetheless I will make the phone call and report back just for giggles. Thanks again.

#4 forrestmage

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Posted 15 April 2008 - 11:50 AM

You could share the dls line with a router but there are other factors. With dsl you have the dsl provider and the ISP- they can be the same or they can be different. It kinda sounds to me that the ISP is the corporation owning your dad's franchise. The dsl is probably provided by the local phone company. What this means is that all data over the dsl line goes through that company firewall and is subject to the same limitations and filtering so even if you share the line, those limitations will apply. Either that or they set up a proxy on your dad's computer. You may be able to bypass the proxy in Internet Options (connections tab, LAN settings button- look for "Use proxy check box"). Again, be careful as to the fine print of your Dad's contracts, while he pays for the dsl, the corporation can still dictate how he uses it (I'm not a lawyer though). One option to try would be using an online anonymous proxy. There are many sites out there that provide this service, some for free, some for cost. (free ones generally pay for the site with ads which often include porn ads, just fyi). vtunnel.com is a popular free one- but the corp's content filter may block it if they know about it. With these sites, you go to the site, and the site will have a secondary address bar embedded in the site. You put in the address you want on the site and then the site makes the web request for you.
Another precaution- using web proxies may also violate your dad's contract so be sure first. Also, not all web proxies are truly anonymous...
You could also use the tor network- if you use firefox there is a tor network add-on (a couple actually). Reference their notes on usage.

Again- know the terms of his contract before doing anything!!!!!

#5 Kendy

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Posted 15 April 2008 - 03:12 PM

as i know you able to share dsl line by using router, switch or router
but for the firewall or blocker you mention, they install in which part?
at your system or where else?
normally if you connect your system and computer in same router, switch or router
you can connect to internet

#6 jeremiahbear

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Posted 16 April 2008 - 11:41 AM

Maybe I am making it more complicated than it is, or I don't understand all of the complexities involved. Basically they said,

"Hey Joe, if you get a DSL line, you can do inventory checks and we can do automatic updates to your system without the use of a dial-up phone line. Totally your option. It will be X-number of years before all of our jobbers in the country have high speed internet so the phone system will be there for a long time, but if you can get high speed internet it will improve your communications time."

So he did. All the firmware is from AT&T. They plugged it into their mainframe at his store. He would just like to use it on his personal pc also without affecting their system. Including screwing with the IP address or whatever.

In a nutshell, that is it.

I called my dad and he confirmed. It was totally his option. No contract of any kind. He could turn the DSL off and go back to dial-up today if he wanted.

#7 forrestmage

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Posted 16 April 2008 - 12:49 PM

So yes, you can share the line using a router. However, I'm assuming that the computer corporate accesses is plugged directly into the dsl modem? If so, does the dsl modem have extra ports on it? The problem being that if the dsl modem has only one port, and you connect a router to it, you will have to set-up NAT/port-forwarding for the corporate access.

#8 jhsmurray

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Posted 16 April 2008 - 01:13 PM

Any chance connecting through a DMZ port on the router might help? (edit:assuming there is one available)

Edited by jhsmurray, 16 April 2008 - 01:14 PM.


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#9 forrestmage

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Posted 16 April 2008 - 01:16 PM

Possibly, depends on how the DMZ is configured on the router. Basically you need to maintain the static IP address of the computer corporate is accessing.

#10 jeremiahbear

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Posted 16 April 2008 - 04:58 PM

Yes. The IP adresses must remain static.




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