IP address
With a TCP/IP connection, an assigned number for identifying devices on
a network. IP addresses exist in IPv4 and IPv6 formats.
Subnet mask
A number for subdividing a network when using an IPv4 IP address. The
range of IP addresses assigned to devices can be limited by the user.
Gateway address
The address of a device serving as a gateway for communication
between different devices. In general, a router is a gateway by default.
DNS
(Domain Name System)
A service providing name resolution for matching host names (domain
names) with IP addresses via a server.
Port
Basically a doorway, where an IP address is like a street address. Assigning
port numbers allows for increased security.
Proxy
The PC, software, etc. that handle HTTP communication with devices
outside the network as a proxy, mostly for browsing websites, etc.
Instead of communicating directly outside the network, connection is
relayed outside via a proxy server.
Router
A communication device for connecting a network and devices. Wired
and wireless types are available.
SSID (network name)
An access point identifier when using a wireless LAN.
password (network key)
An encryption key when connecting to a wireless LAN. Setting an
encryption key that corresponds to an SSID allows connection to an
access point.
Firewall
A system that blocks unauthorized access from outside a network, and
prevents attack and intrusion into a network within a local area.
Glossary
EN
Network & Remote Monitoring Service Connection
26