Technical data

Glossary
TS Adapter IE Basic
84 Manual, 08/2014, A5E02615140-03
Service life
See Lifetime
SLAAC
Stateless Address Autoconfiguration: Stateless address autoconfiguration in IPv6 mode
(RFC 4862).
SMTP
Simple Mail Transfer Protocol: protocol of the Internet protocol family for exchanging e-mails
in computer networks.
SMTPS
Simple Mail Transfer Protocol Secure: Protocol for e-mail exchange in computer networks
including SSL encryption.
Software
Software refers to the entirety of all programs that are used on a computing system. The
operating system and user programs belong to this.
SSTP
Secure Socket Tunneling Protocol: tunnel protocol for encapsulating a packet inside another
packet. Tunnels the PPP or L2TP traffic through an SSL channel.
ULA
Unique Local Addresses (ULA): Local IPv6 addresses that are only valid within a local
network (RFC 4193).
User program
The user program contains all instructions and declarations for processing the signals used
for controlling a system or a process. In SIMATIC S7 the user program is structured and
divided into small units, the blocks.
VPN
Virtual private network: VPN is used to connect nodes of one private network to another
private network without the networks having to be compatible.
WAN
Wide area network: Computer network that differs from a LAN in that it extends over a very
large geographic area. There is no limit on the number of connected computers.