Motorola SURFBOARD SVG2500 - Manual (Page 171)

17 GLOSSARY
156
TERM DEFINITION
communications.
splitter A device that divides the signal from an input cable between
two or more cables.
SSID The Service Set Identifier or network name is a unique
identifier that wireless clients use to associate with an
access point to distinguish between multiple WLANs in the
same area. All clients on a WLAN must have the same SSID
as the access point.
s t a te fu l
-
inspection
A type of firewall that tracks each connection, traversing all
firewall interfaces to ensure validity. In addition to examining
the source and destination in the packet header based on static
rules, a stateful inspection firewall:
• Examines packet headers via the context established by
previous packets that traversed the firewall
• Monitors the connection state and saves it in a table
• Closes ports until a connection to a specific port is
requested
• May examine the packet contents up through the
application layer to determine more than just the source
and destination
A stateful inspection firewall is more advanced than a static
filter firewall.
static filter A type of firewall that examines the source and destination in the
packet header based on administrator-defined rules only.
static IP
address An IP address that is permanently assigned to a host.
Normally, a static IP address must be assigned manually. The
opposite of dynamic IP address.
static route A manually-defined route.
station IEEE 802.11b term for wireless client.
subscriber A home or office user who accesses television, data, or other
services from an Internet Service provider.
subnet mask A bit mask that is logically ANDed with the destination IP address
of a packet to determine the network address. A router routes
packets using the network address.
subnetwork A part of a network; commonly abbreviated “subnet.” When
subnetting is used, the host portion of the IP address is
divided into a subnet and host number. Hosts and routers
use the subnet mask to identify the bits used for the network
and subnet number.
switch On an Ethernet network, a switch filters frames based on the