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Instruction Manual
124
TERM MEANING
Key lifetimes
The length of time before keys are renegotiated
LAN
Local Area Network
LDAP
The Lightweight Directory Access Protocol
(LDAP) is based on the X.500 standard, but sig-
nificantly simpler and more readily adapted to
meet custom needs. The core LDAP specifica-
tions are all defined in RFCs. LDAP is a protocol
used to access information stored in an LDAP
server.
LED
LightEmitting Diode
MAC address
Every piece of Ethernet hardware has a unique
number assigned to it called it's MAC address.
Ethernet is used locally to connect the IMG/
IM/CM4000 to the Internet, and it may share
the local network with many other appliances.
The MAC address is used by the local Internet
router in order to direct IMG/IM/CM4000 traffic
to it rather than somebody else in the local area.
It is a 48bit number usually written as a series
of 6 hexadecimal octets, e.g. 00:d0:cf:00:5b:da.
A IMG/IM/CM4000 has a MAC address listed on
a label underneath the device.
MSCHAP
Microsoft Challenge Handshake Authentication
Protocol (MSCHAP) is authentication for PPP
connections between a computer using a Micro-
soft Windows operating system and a network
access server. It is more secure than PAP or
CHAP, and is the only option that also supports
data encryption.