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Using a home based PC as a dial up Point Of Presence

Posted on 2007-03-29
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Last Modified: 2010-04-17
In my house have a Windows XP (home edition) PC (192.168.0.10) which speaks to my router (192.168.0.1) for internet access via ADSL.

I want to connect a incoming calls modem to the house based XP machine so that when I am out with a laptop I can dial up the house and gain normal internet access just like when I dial an ISP.

The big advantage is that rather than pay 5p per minute for an 0845 ISP number, I can dial my normal landline for 0p per minute!

The connectivity is notionally as follows:

LAPTOP-MODEM------MODEM-XP_HOME(192.168.0.10)----Lan----(192.168.0.1)ROUTER(Real IP Address)---------Internet

So....... can this be done on XP Home Edition - any pointers?  Thanks
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Question by:Susan2c
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Rob Williams earned 150 total points
ID: 18819321
Good question. <G>
It can definitely be done with a server operating system using RRAS (Routing and Remote Access Services) however, XP does not have built-in routing capabilities to route the packets from the modem out to the network adapter. I can't tell you how to do it, but if you want I can point you in the right direction and you can "tinker" until you hear from some one with more input.

-You need to set up the XP machine at home to accept incoming calls:
Go to control panel | Network connections | add a new connection | set up an advanced connection | accept incoming connections | and follow the wizard
-You also have to configure XP to allow it to act as a router. See:
http://www.petri.co.il/configuring_routing_in_w2k_pro_xp_pro.htm
-Then on the connecting client machine you need to create the connection:
control panel | Network connections | add a new connection | connect to the computer at my workplace | Dial-up connection | then follow the wizard
-you will still likely have to play with the routing, but it might be possible.

Keep in mind both phone lines are tied up while you do this, and the effective connection speed will likely be less than 40kbps.
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Author Comment

by:Susan2c
ID: 18862947
Thanks Rob,

Thats what I thought!

Thank,
Susan
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LVL 77

Expert Comment

by:Rob Williams
ID: 18863687
Very welcome Susan. Sorry it was not a complete solution.
Cheers !
--Rob
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