1106
COMmander 6000/R/RX - Firmware V7.0D - Advanced Information V19 04/2018
Glossary
Terminology
STUN
Simple Transversal of UDP over NATs - used to determine the public IP
address of an Internet connection. To do this, a STUN request is sent to a
STUN server, which then shares its own IP address allocated by the VoIP
provider with the Internet connection.
Subnet mask
Configuring subnetworks makes it possible to connect many totally different
networks located in totally different areas because each subnetwork
receives its own address and can therefore be addressed by the router. A
subnetwork is created when the IP address is linked with a subnet mask:
If a bit in the subnet mask is set, the corresponding bit in the IP address is
considered a part of the network address. If a bit is not set in the subnet
mask, the corresponding bit in the IP address is used as a part of the PC
address.
The value of the subnet mask, as with IP addresses, is often given in
decimal form (for example, 255.255.255.0 for IPv4 addresses).
Switch
Active network distributor that distributes data packages to a destination
defined by an IP address among the different segments of a network.