Using DCC and DUN at the same time

Direct Cable Connection (DCC) and Dialup-Networking (DUN) are closely
related, and are partially using the same software modules (PPPMAC.VXD).
When Microsoft limited the Windows95 Dialup-Networking to a single connection, they at the same time made it impossible to use DCC and DUN at the same time:

BUT on later versions (including Windows 95 Dial-up Networking v. 1.2,
Windows 98, Windows ME) the Dial-up networking can run simultaneously with a
Direct Cable connection.


	Once Windows95 has established a Direct Cable Connection (either acting as Host or as Client), it is not possible to dialout via the Modem to establish another connection, and it even tells us properly the reason ("that there is already a Dialup-Networking connection in use")
	DCC connecting as Client: Dialup Networking is limited to a single simultaneous connection
	And if we first connect via the modem, and then set up the system as DCC Host, it seems to be ok, but it does NOT accept any incoming DCC connection (and does not give any error message)
	When connecting first via the Modem and then trying to establish a connection via DCC(as DCC Client),it does NOT connect (although the DCC host is properly configured and waiting for a connection).

with DUN 1.2 Upgrade installed: as delivered as delivered
	for the Implementation of Virtual Private Networks (VPN), it is required to have 2 connections (first an Internet connection, second the VPN connection). For this reason, Windows95 with DUN 1.2 upgrade and Windows98 can be configured with 2 Dialup- Networking adapters, allowing now to have 2 connections at the same time.
	I have use NetBEUI as protocol in this example: you can act as DCC host and still are able to dial out
	Or being already a DCC Client, you can establish a second Client connection using Dialup-Networking
	Or being already connected as a Dialup-Networking Client, then start up DCC to act as a host and accept incoming DCC connections. And while being connected as Client via Dialup-Networking (using FIND/ Computer to locate resources), make a second connection as DCC Client, using View Host to view the resources

Use DCC to share a Dialup-Networking Internet Connection

You like to use DCC to connect 2 computers, to share 1 modem for an Internet connection via Dialup-Networking ?

make sure, that you have basic knowledge on TCP/IP and the using a Proxy-server !
The setup/configuration is then very similar to using a Proxy on a LAN:

On the system connecting to the Internet:	We need to have 2 Dialup-Adapters: - one for the Modem to the Internet - one for the DCC connection Configure the binding: "TCP/IP ->Dialup-Adapter" for your Internet connection Configure the binding "TCP/IP->Dialup-Adapter#2" for the internal TCP/IP connection ( this will be used by the DCC connection), assign an IP-address.
on the system WITHOUT Internet connection:	On the system without the Internet connection, we have only ONE Dialup-Adapter, which will handle the DCC connection. Configure TCP/IP with an IP-address. Depending on the setup-instructions of your Proxy-server, you may have to define also a DNS-configuration.

Since we had to configure the TCP/IP properties for different settings
(dynamic IP-address assignment on the Internet connection, static IP-address
on the DCC connection), they are NOT exchangeable.
This requires, that you now FIRST make your connection to the Internet
and THEN as second step make your DCC connection between the systems !




	Dialup-Connection to the Internet, Direct Cable Connection Using DCC and DUN at the same time