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Appendix D: Protocol Glossary
BOOTP (Bootstrap Protocol)
Similar to DHCP, but for smaller networks. Automatically assigns the IP address for a specific
duration of time.
CHAP (Challenge Handshake Authentication Protocol)
A secure protocol for connecting to a system; it is more secure than the PAP.
DHCP (Dynamic Host Configuration Protocol)
Internet protocol for automating the configuration of computers that use TCP/IP.
DNS (Domain Name Servers)
A system that allows a network nameserver to translate text host names into numeric IP
addresses.
FTP (File Transfer Protocol)
A protocol for transferring files between computers on a network that is insecure by design and
susceptible to interception. See also SCP, SFTP, and TFTP.
IKEv1 and IKEv2 (Internet Key Exchange)
A protocol used to set up a security association in the IPsec protocol suite that allows two parties
to send data securely.
IPsec
A protocol suite for securing Internet Protocol (IP) communications by authenticating and
encrypting each IP packet of a communication session.
Kerberos
A network authentication protocol that provides strong authentication for client/server applications
by using secret-key cryptography.
LDAP (Lightweight Directory Access Protocol)
A protocol for accessing directory information.
MIB (Management Information Base)
MIB is part of the Simple Network Management Protocol (SNMP) and describes the set of
manageable objects within a network device.
NAT (Network Address Translation)
An Internet standard that enables a LAN to use one set of IP addresses for internal traffic and a
second set of addresses for external traffic. This enables a company to shield internal addresses
from the public Internet.
