User's Manual

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Appendix A:
www.gateway.com
LDAP
The Lightweight Directory Access Protocol (LDAP) is a protocol for accessing on-line directory
services. It is used to provide an authentication mechanism. It is based on the X.500
standard, but less complex.
Lease Time
The Lease Time specifies the period of time the DHCP Server gives its clients an IP Address
and other required information. When the lease expires, the client must request a new
lease. If the lease is set to a short span, you can update your network information and
propagate the information provided to the clients in a timely manner.
LLC
The Logical Link Control (LLC) layer controls frame synchronization, flow control, and error
checking. It is a higher level protocol over the
PHY layer, working in conjunction with
the
MAC layer.
MAC
The Media Access Control (MAC) layer handles moving data packets between
NICs across
a shared channel. It is a higher level protocol over the PHY layer. It provides an arbitration
mechanism in an attempt to prevent signals from colliding.
It uses a hardware address, known as the MAC address, that uniquely identifies each node
of a network.
IEEE 802 network devices share a common 48-bit MAC address format, displayed as a string
of twelve (12) hexadecimal digits separated by colons, for example FE:DC:BA:09:87:65.
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.