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NonStop S-Series Planning and Configuration Guide (G06.29+)

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Terms and Concepts
HP NonStop S-Series Planning and Configuration Guide—523303-021
1-45
IP Addresses
Point-to-Point Protocol (PPP)
Point-to-Point Protocol (PPP) provides a standard method for encapsulating
information over point-to-point links.
Remote Procedure Call (RPC)
Remote Procedure Call (RPC) is a protocol that extends a procedure-call form of
process-to-process communication to a network environment. RPC is a way for
programs running on client computers to invoke the services of a program running on a
server computer.
Challenge Handshake Authentication Protocol (CHAP)
Challenge Handshake Authentication Protocol (CHAP) is an Internet-standard protocol
for verifying encrypted passwords. CHAP is a security protocol that is implemented
using Point-to-Point Protocol (PPP). CHAP uses a three-way handshake for
authentication. The central site initiates the challenge with a key to a “secret.” This
secret is used to determine a response, which is encoded and sent back to the central
site. The central site evaluates the response and either accepts or rejects it.
Internet Protocol (IP)
Internet protocol (IP) handles the routing of data through a network, which typically
consists of many different (heterogeneous) subnetworks. IP is connectionless—it
routes data from a source address to a destination address.
IP Addresses
IP routes data between source and destination addresses called IP addresses. An IP
address consists of two parts—a network address, which identifies the network, and a
local address, which identifies a host within a network. A network address is
concatenated with a local address to form the IP address and uniquely identify a host
within a network.
Note. This information applies to TCP/IP version 4. For information about TCP/IP version 6,
refer to the TCP/IPv6 Configuration and Management Manual
IP Address Syntax 1-46
IP Address Classes 1-46
Domain Name Servers 1-48
Host Tables 1-48
Host Names and Domains 1-47
NIS Domain Names 1-48
Subnet Addressing 1-48
Subnet Masks 1-48