elmeg DECT200 Multicell System / en / elmegDECT200M_en / Glossary.fm / 18.10.2013
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elmeg DECT200 Multicell System
bintec elmeg
Glossary
STUN
Simple Transversal of UDP over NAT
NAT control mechanism.
STUN is a data protocol for VoIP telephones. STUN replaces the private IP address in the VoIP
telephone data packets with the public address of the secure private network. To control
data transfer, a STUN server is also required on the Internet. STUN cannot be implemented
with symmetric NATs.
See also:
.
Subnet
Segment of a
Subnet mask
consist of a fixed line number and a variable subscriber number. The network
number is identical for all
s. The size of the network number part is
determined in the subnet mask. In the subnet mask 255.255.255.0, for example, the first
three parts of the IP address are the network number and the last part is the subscriber
number.
Symmetric NAT
A symmetric NAT assigns different external IP addresses and port numbers to the same
internal IP addresses and port numbers – depending on the external target address.
T
TCP
Transmission Control Protocol
. Session-based transmission protocol: it sets up, monitors and
terminates a connection between sender and recipient for transporting data.
TLS
Transport Layer Security
Protocol for encrypting data transmissions on the Internet. TLS is a superordinate
Transmission rate
Speed at which data is transmitted in the
. The transmission rate is measured in
data units per unit of time (Mbit/s).
Transport protocol
Controls data transport between two communication partners (applications).
See also:
,
U
UDP
User Datagram Protocol
. Unlike
is a non session-based protocol. UDP does not
establish a fixed connection. The data packets ("datagrams") are sent as a broadcast. The
recipient is solely responsible for making sure the data is received. The sender is not notified
about whether it is received or not.
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