Dial-up Connections

Our networking discussion thus far has presented networking from a fully connected point of view. Our systems are permanently connected to a network and have full-time access. Dial-up connections like telephone calls have no such longevity. Dial-up connections can be through a modem, direct connections using serial, parallel, or infrared ports on two computers, or even wireless connections. We will focus on telephone dial-up connections. Table 17-1 lists the support offered by Linux and Windows. Each feature is given a letter grade that is our opinion of the quality of the feature.

Table 17-1. Dial-up protocols supported
Protocol Linux Windows
Telnet Client B B+
Telnet Server A B-
SLIP Client B B
SLIP Server B  
PPP Client ...

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