Technical data
Configuring Serial Lines
3.2 Setting Up a PPP Interface (Alpha Only)
3.2.1 Setting Up Your Host for PPP Connections
In the client/server model for PPP connections, a host can function as a server, or
dialup provider, to respond to incoming PPP connection requests. A host can
also function as a client dialing in to a dialup provider.
• A PPP dialup provider answers modem calls from PPP clients, assigns IP
addresses, and establishes PPP connections initiated by client hosts.
Typically, a PPP dialup provider is permanently connected to the network
through an interface such as Ethernet. The dialup provider services PPP
clients that initiate temporary, dialup connections because they do not have
permanent connections.
• A PPP client establishes a temporary PPP connection to a dialup provider or
a terminal server.
Note
For information about establishing a PPP client connection from a UNIX
system, refer to the UNIX documentation. For a connection from a
PC, refer to the PC’s dialup networking instructions. You will need to
configure your modem correctly as outlined in the Section 3.2.1.2.
Setting up an OpenVMS Alpha host as a PPP dialup provider or client involves
a series of tasks. These tasks are listed in Table 3–2 in the order you should
complete them, and are explained in Sections 3.2.1.1 through 3.2.1.6.
Table 3–2 Set Up Tasks Required for an OpenVMS Alpha PPP Dialup Provider
or Client
Step Task
OpenVMS
Dialup Provider
OpenVMS
Client
1 Install the correct terminal driver. Yes Yes
2 Configure your modem. Yes Yes
3 Set up an asynchronous port for modem
connections.
Yes Yes
4 Configure an interface for a serial PPP
connection.
Yes Optional
5 Enable IP forwarding and dynamic routing, as
appropriate.
Yes No
6 Initiate a PPP connection. NETMBX and OPER
privileges required.
No Yes
3.2.1.1 Installing the Terminal Driver
Confirm that the
virtual terminal driver SYS$LOADABLE_IMAGES:SYS$TTDRIVER.EXE is
installed on your host. If it is not installed, run the System Management utility
(SYSMAN), connect the device, and load the driver, as shown in the following
example:
$ RUN SYS$SYSTEM:SYSMAN
SYSMAN> IO CONNECT VTA0 /NOADAPTER /DRIVER=SYS$TTDRIVER
SYSMAN> EXIT
3–4 Configuring Serial Lines