User`s guide

XSR User’s Guide 63
5
Configuring IP
Overview
This document describes the IP protocol suite functionality offered by the
XSR including:
 General IP features (ARP, ICMP, TCP, UDP, TFTP, Telnet, SSH, NAT,
VRRP, et al.)
 IP routing (RIP, OSPF, static routing, triggered-on-demand RIP updates)
 Applicable MIBs
 Configuration examples
IP protocol, the main protocol of the TCP/IP suite, interconnects systems of
packet-switched computer communication networks. It transmits TCP, UDP,
and ICMP information as IP datagrams in a 32-bit addressing scheme where
an IP address is represented by four fields, each containing 8-bit numbers. IP
uses three types and five classes of addresses:
 Unicast - destined for a single host
 Broadcast - destined for all hosts on a given network
 Multicast - destined for a set of hosts belonging to a multicast group
 Class A, B, and C - used as a pool for unicast addresses
 Class D - used for multicast addresses
 Class E - reserved for future use
General IP Features
The following features are supported on the XSR:
 Meets requirements for IPv4 routers - RFC-1812