Ip Address Serving - Netopia 435 Reference Manual

4-18 Netopia ISDN Router Reference Guide

IP address serving

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In addition to being a router, the Netopia ISDN Router is also an IP
address server. There are four protocols it can use to distribute IP
addresses.
The first, called Dynamic Host Configuration Protocol (DHCP), is
widely supported on PC networks, as well as Apple Macintosh
computers using Open Transport and computers using the UNIX
operating system. Addresses assigned via DHCP are "leased" or
allocated for a short period of time; if a lease is not renewed, the
address becomes available for use by another computer. DHCP
also allows most of the IP parameters for a computer to be
configured by the DHCP server, simplifying setup of each
machine.
The second, called BOOTP (also known as Bootstrap Protocol), is
the predecessor to DHCP and allows older IP hosts to obtain
most of the information that a DHCP client would obtain.
However, in contrast, BOOTP address assignments are
"permanent" since there is no lease renewal mechanism in
BOOTP.
The third protocol, called IPCP, is part of the PPP/MP suite of
wide area protocols used for ISDN WAN connections. It allows
remote terminal adapters and NAT-enabled routers to be
assigned a temporary IP address for the duration of their
connection.
IP
Address
Serving
• DHCP Setup
•BOOTP Setup
• MacIP Setup