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Configuring the Point-to-Point Protocol (PPP)

Configuring IP parameters

The following advanced IP options can be configured:


IP address negotiation
Whether to perform IP address negotiation with the remote site. The default setting is Yes.

Local address
Select one of:

Negotiate
Try to negotiate a locally configured local IP address. If the remote side refuses to use the address or no address has been configured locally, allow the remote host to provide the local IP address. This is the default behavior.

Specify
Try to negotiate a locally configured local IP address. If the remote side refuses to use the address, the link will fail. If no address has been configured locally, allow the remote host to provide the local IP address.

Obtain
Allow the remote host to provide the local IP address, overriding any locally configured address. If the remote host cannot provide an address, negotiate a locally configured local IP address with the remote host.

Remote address
Select one of:

Negotiate
Try to negotiate a locally configured remote IP address. If the remote side refuses to use the address or no address has been configured locally, allow the remote host to provide the remote IP address. This is the default behavior.

Specify
Try to negotiate a locally configured remote IP address. If the remote side refuses to use the address, the link will fail. If no address has been configured locally, allow the remote host to provide the remote IP address.

Obtain
Allow the remote host to provide the remote IP address, overriding any locally configured address. If the remote host cannot provide an address, negotiate a locally configured local IP address with the remote host.

Negotiation type
Select the type of address negotiation if it is enabled for this link. The default setting is to use RFC 1332-style negotiation. The alternative is to use old-style RFC 1172 negotiation. For more information on address negotiation, see ``PPP negotiation''.

VJ header compression
Control Van Jacobson TCP/IP header compression. The default is Yes.

Slot compression
Control compression of slot IDs for Van Jacobson TCP/IP header compression. The default setting is Yes.

Number of compression slots
Sets the number of Van Jacobson header compression slots. The value must be between 3 and 16. The default value is 16.
The following additional parameter is available for the Automatic Dialup (Outgoing), Manual Dialup (Outgoing) and Dedicated Serial Line PPP endpoints only.

Obtain DNS servers
Request that the remote host provide addresses for DNS servers. This parameter is valid only for clients. The default setting is No.
The following additional parameters are available for the Remote Access (Incoming) PPP endpoint only.

Send DNS server addresses
Enable the PPP service to provide Domain Name Service (DNS) server addresses to clients. Addresses are provided only for incoming links and only if the client requests. The default setting is No. The ``Primary DNS Server'' address must be an IP address, and can be specified for primary and secondary servers. If only one address is specified, it serves as both primary and secondary server.

Send WINS server addresses
Enable the PPP service to provide Windows Internet Naming Service (WINS) server addresses. Addresses are provided only for incoming links and only if the client requests. The default setting is No. The ``Primary WINS Server'' address must be an IP address, and can be specified for primary and secondary servers. If only one address is specified, it serves as both primary and secondary server.
For more information:
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© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003