Panasonic 7 - Manual (Page 165)

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Glossary
acknowledgement (ACK)
A type of message sent to indicate that a block of data arrived at its destination
without error.
address masks
IP addresses used to represent a series or range of IP addresses.
authentication
A security procedure where a user verifies his identity before accessing
networks protected by a firewall.
bandwidth
The difference between the highest and lowest frequencies of a transmission
channel; amount of data that can be sent through a given communications
circuit.
certification authority (CA)
An authority that issues digital certificates and manages the life cycle of
certificates.
Challenge Handshake Authentication Protocol (CHAP)
A peer entity authentication method for PPP, using a randomly-generated
challenge and requiring a matching response that depends on a cryptographic
hash of the challenge and a secret key.
client
A system or process that requests a service of another system or process.
default route
A route that is used when the switch receives traffic for which no matching
route is in the routing table.
Nortel VPN Router Configuration — Basic Features