Siemens Synco OZW772 Series Commissioning Instructions page 170

Static IP address
Subnet
Subnet mask
Switch
TCP
TCP/IP
TLS
Transmission Control
Protocol
Transport Layer
Security
UDP
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Network devices, and servers in particular, integrated permanently in a network,
have static IP addresses. Clients often have a dynamic IP address. Web Server
(integrated permanently in a network) has a static IP address and can thus be
reached easily by clients.
A subnet subdivides a network into smaller network segments.
A subnet mask masks the IP address, i.e. it determines which parts of the IP
address form the network number and which parts the computer number (e.g.
server).
Subnet mask 255.255.255.0 means that the first three sections of the IP address
determine the network number, and the fourth section is used for the computer
number. In this case, the first three IP address sections are identical for all
network devices. Example:
Subnet mask 255.255.255.0 masks IP addresses: 192.168.1.1...192.168.1.254.
Please note: Do not use the first IP address 192.168.1.0 and last IP address
192.168.1.255.
A switch, similar to a hub, is a connecting element to connect various network
segments or network devices. Contrary to the hub, a switch is an intelligent device
used to route packages only to the subnet or network device for which a package
is destined.
The TCP protocol is a TCP/IP protocol. TCP is responsible for transporting data
between two communication partners (applications). TCP is a secured
transmission protocol, i.e. a connection is established, monitored and
disconnected to data transmission.
TCP is a so-called connection-oriented protocol. The transmission control protocol
TCP reassembles the data packages, sent by the Internet protocol IP via different
network connections, in the right order at the Receiver.
Family of protocols used as the basis for the Internet. TCP/IP for the basis for
any number of internet services such as
SMTP (mail).
TLS (Transport Layer Security, for [outdated]: SSL Secure Sockets Layer)
a hybrid encryption protocol to transmit data over the Internet. TLS 1.0, 1.1 and
1.2 are standardized developments of SSL 3.0 (TLS 1.0 is now used for SSL 3.1).
In other words, SSL is being further developed under the name TLS.
The Web Server always uses TLS for e-mails if the e-mail provider supports TLS.
See TCP.
See TLS.
UDP is a TCP/IP protocol to control data traffic between two communication
partners (application). UDP, in contrast to TCP, is an unsecured protocol. UCP is
a so-called connection-less protocol. Data packets are broadcast. The Receiver is
responsible for receiving data. The sender does not receive notification if the data
packages were received.
Web server OZW772... V6.0
Appendix
HTTP (Web), FTP (file transfer) and
CE1C5701en
2015-10-12