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Basic Connectivity Terms

Before configuring basic connectivity, become familiar with the terms defined in Table 45.

Table 45: Basic Connectivity Terms

Term

Definition

domain name

Name that identifies the network or subnetwork of a router.

Dynamic Host Configuration Protocol (DHCP)

Protocol for assigning dynamic IP addresses to devices on a network.

gateway

Packets destined for IP addresses not identified in the routing table are sent to the default gateway.

hostname

Unique name that identifies a router on the network.

loopback address

IP address of a Services Router on logical interface lo0.0 that is always active and available to external hosts and as the source address for outgoing packets.

Network Time Protocol (NTP)

Protocol that provides a reliable way of synchronizing the system time of a router.

root user

A superuser or system administrator who can perform any task in the file system.

secure shell (SSH)

Protocol that provides a secured method of logging in to a remote network system.

Telnet

Software that allows a computer to act as a remote terminal on a network system.


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