User guide

RouteFinder MTASR3 User Guide

MTASR3

Point-to-Point Setup

The PPP Port Setup dialog box controls the WAN port protocol, dial on demand, and remote port

setup. The WAN port protocol can be either Point-to-Point Protocol (PPP) or Serial Line Internet

Protocol (SLIP). Of these two protocols, PPP is the more robust as it allows the endpoints to

negotiate the use of the link and protocol parameters in a standardized way and also allows for

standardized encapsulation of the packets. SLIP is an older protocol which requires manual

authentication using a script.

PPP is the default protocol. The PPP software in the RouteFinder internally negotiates the use of a

suitable authentication protocol (PAP or CHAP) with the remote router or remote access client

software. When either PAP or CHAP (or both) is enabled, the RouteFinder expects the peer (the

client on the other side of the WAN link) to be configured with a User Name and Password

combination that is in the RouteFinder’s User Database. The User Name and Password are both

ASCII character strings that can be up to 30 characters long. However, for router-to-router

connections, authentication is normally not used and the User Name and Password fields are empty.

The Periodic Timer option shows the interval between authentication checks. The recommended

value is 60 seconds. The Number of Retries option, with a recommended value of 5, refers to the

number of retries during each PAP or CHAP authentication check.

If SLIP is to be used on one of the WAN ports, then select the SLIP Enable option on the

corresponding tab and PPP will be disabled automatically. If the TCP/IP header is to be compressed

using VJC compression, then check the CSLIP (Van Jacobson Compression) option. (Note: on

answering WAN ports, the RouteFinder can detect the type of connection -- PPP or SLIP.)

You can set up the RouteFinder to bring down the connection on the WAN link when there is no real

data traffic on the line; the router will then automatically bring up the WAN link when data is available

to go across the link.