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D-62 Psion Teklogix 9160 G2 Wireless Gateway User Manual
Appendix D: Glossary
MIB
a PC and that access point with an Ethernet cable rather than having to use a crossover
cable).
MIB
Management Information Base (MIB) is a virtual database of objects used for network
management. SNMP agents along with other SNMP tools can be used to monitor any
network device defined in the MIB.
MSCHAP V2
Microsoft Challenge Handshake Authentication Protocol Version 2 (MSCHAP V2)
provides authentication for PPP connections between a Windows-based computer and an
Access Point or other network access device.
MTU
The Maximum Transmission Unit is the largest physical packet size, measured in bytes, that
a network can transmit. Any messages larger than the MTU are fragmented into smaller
packets before being sent.
Multicast
A Multicast sends the same message to a select group of recipients. Sending an e-mail
message to a mailing list is an example of multicasting. In wireless networks, multicast
usually refers to an interaction in which the access point sends data traffic in the form of
IEEE 802.1x Frames to a specified set of client stations (MAC addresses) on the network.
Some wireless security modes distinguish between how unicast, multicast, and broadcast
frames are encrypted or whether they are encrypted.
See also Unicast and Broadcast.
N
NAT
Network Address Translation is an Internet standard that masks the internal IP addresses
being used in a LAN. A NAT server running on a gateway maintains a translation table that
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