Ethernet and Dialup-adapter: Sharing Internet Connection

by Johannes Helmig [Published on 18 April 1998 / Last Updated on 18 April 1998]

When installing today an Ethernet network in a PC, there is a high chance, that there is also a modem, configured as 'Dialup-Adapter' for Internet-connection.
The usual setup would then be: have the PCs talk to each other via the Ethernet using NetBEUI, which you use TCP/IP for the Dialup-adapter.
So, your network diagram gets a little larger :


When installing the Ethernet card, Windows95 will install:

All protocols have a 'Binding' to both the Network-adapter and the Dialup-Adapter. To avoid unnecessary memory usage and also to get a slightly better performance, you should delete all not-required protocol-adapter bindings, just click on it to select it, then choose the "Remove"-button.
This is my suggestion for a 'cleaned-up' Network-configuration:

You can also check the 'Bindings' by calling up for the Adapters and protocols the Properties and selecting the tab: Bindings:

For proper working of the network, it is required to have a connection from the Client-module to the Server-module via Protocol and adapter with valid bindings.


Sharing one modem on a Network for Internet access ?

This question shows up very often in the newsgroups, and there is an answer:
No and Yes !

NO
: Windows95 or 98 itself is NOT able to share a modem across a network, and the PC with the installed modem cannot be configured as a Gateway (since most Internet-connections use a DHCP (Dynamic IP-address assignment).

Yes:
using Windows 98 Second Edition (SE) and Windows ME Internet Connection Sharing
Yes:
using Windows 2000 Internet Connection Sharing

Yes: There are non-Microsoft products available, which enhance Windows95 to be able to use one modem for Internet access from multiple networked systems.
Such a program is often called: Proxy(make sure, that you understand the basics of a Proxy before attempting to install one ! ).


Kerio offers several packages, starting with:
WinRoute Lite (there is a 30 day evaluation
copy on their Website)

Example: Using WinRouteLite to share Internet Connection on Windows9x and NT4


Artisoft (http://www.artisoft.com/) offers its
ModemShare program, there is a 30 day
evaluation copy on their website.


Have a look at http://www.wingate.net
(yes, it is a 'net' domain, 'wingate.com' is a different company !).

They offer an evaluation download of their 'Wingate' product. For networks with more than 2 systems, you need to request an activation-code, which expires after the evaluation period, unless you purchase the product.
But for a 2 system network with 1 modem, it seems to work without any limitation, even without activation-code and without expiring, so some people think about such a 2 PC-version as 'freeware'.
I myself have no need for it, but I looked at their website, it includes a very detailed section with documentation on installation and configuration (so, please do NOT ask me for any help , post them in the win95-networking related newsgroups or search 'dejanews'!).


Have another look at Sygate: www.sygate.com:

According to the comments in the NewsGroups, SyGate is much easier to setup/configure than Wingate, but it is NOT free: a 3 user license is 50 US$.
They offer a trial-version for download, which transfers up to 50 MByte, then a key-code has to be purchased.


Another product to look at: www.pscs.co.uk/software.vsockslight.html

PSCS offers for free a light version of their VSOCKS Windows95/NT4 Proxy Server, allowing to share a modem for Internet access.


And another product from :

http://www.winproxy.com/
They offer a 30-day Trial-version.
Then, a 3-user license is offered
for 59.95 US$.

And another product from:
http://www.technocratix.com/webetc

They offer a 30-day Trial-version, after that, it requires a key
(4-user license for 79 US$, 20-user license for 149 US$).


And another product (developed in India):

http://www.pppindia.com/intl/pppshar

They offer a Trial-download, which is lmited to HTTP-transfer
( a full license is offered for 49 US$)



A much more complete list of Proxy-servers with download links can be found at the
Shareware website www.windows95.com, now called www.winfiles.com in the
section : Proxy-Servers.

See Also


The Author — Johannes Helmig

Dr.Johannes Helmig is working as Director, Technical Knowledge Management in the Belgium office of Gerber Technology where he is involved in Customer Service and internal training, with special interest in Networking.

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