Ubisys G1, Assembly And Commissioning Instructions

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50 Gateway G1
Section 4 | More information
4.5 Glossary
Carrier-grade NAT Describes a method in which the internet provider assigns a private internet address to its customer,
which is only valid for the length of one internet dial-in. This method is often used in LTE routers. Such
routers cannot be provided with a permanent host name via DDNS. In this case, a VPN tunnel is an
option.
DDNS Dynamic Domain Name Service. A DNS service, whose entries are short-lived and be updated auto-
matically. Often used for routers with a volatile, public IP address. By giving it a permanent host name,
the router can be accessible. Not suitable, if the internet service provider only assigns private addres-
ses (carrier-grade NAT). Known DDNS providers are DynDns and No-Ip.
DHCP Dynamic Host Configuration Protocol. Allows central administration of network parameters such as
IP address, subnet mask, name server etc. for all devices in a network. The Smart Home gateway is a
DHCP client; a DHCP server has to be provided in the network environment.
DNS Domain Name Service. An internet service that is able to convert easy-to-remember names such as
www.google.com to IP addresses like 173.194.113.151 (IPv4) or 2a00:1450:4005:808::1018 (IPv6),
which are required for communication via the internet.
DNS Server A server providing the DNS service. The IP address of one or more such servers is uniquely entered
during the network configuration of an internet-enabled device. From now on, it is possible to enter
easy-to-remember host names instead of hard-to-remember, and optionally frequently changing, IP
addresses on the device.
Ethernet See IEEE 802.3
Firmware Describes the fix installed software on a device, e.g. the gateway or single components of your Smart
Home facility. Although the software is installed fix, it can be updated on ubisys devices.
Host Name Name of a device (PC, server, Smart Home gateway, NAS, printer etc.) in the internet or in the local
network. Examples: www.google.com or smarthome.dyndns.org, or ubisys-g1-0815.home.local.
IEEE 802.3 Also known as Ethernet. A number of international standards for wired networks connecting PCs to
many other devices such as the Smart Home gateway, NAS, printer etc. Basis for the IP based net-
work. IEEE 802.3af standardizes the power supply via the network cable, Power-over-Ethernet.
IEEE 802.11 A number of international standards for wireless networks connecting several devices such as PCs,
tablets, smartphones etc. with each other. Basis for the IP based network via Wi-Fi.
IEEE 802.15.4 An international standard for wireless networking of objects. Low power consumption, high reliability
and safety feature the standard. Amongst other things, it is the basis for ZigBee PRO and ZigBee IP.
IP, IPv4, IPv6 Internet Protocol. Basic protocol of networking for the internet. Currently, version 4 (“IPv4”) is the
most distributed; a gradual change to version 6 (“IPv6”) is underway.
IP Address Address of a web-enabled device. IPv4 addresses have the form 192.168.0.211, IPv6 addresses the
form fe80::4138:954a:d196:3c37. The IP address has a part that indicates the network and a part,
which identifies the device in the network. For this, the net mask needs to be specified in IPv4. This
will determine where the subnet address ends and where the device address begins. There are public
and private IP addresses. Private IP addresses can only be used within the local network; they are not
being routed by the internet router and can therefore be used as many times in different networks.
Name Server See DNS Server.
NAS Network Attached Storage. A network-enabled storage device, usually one or several hard disk drives,
which is power-efficiently embedded into the network without the need of operating an entire PC.
NAT Network Address Translation. A method, where an internet router provides internet access to several
devices in the local network through a single public IP address. For this, every device is assigned
to a port. Through this port, the following data traffic can clearly be assigned to each target device.
Besides automatically assigning ports when establishing a connection from the private network side
to the public side, NAT routers are able to direct incoming data traffic to previously specified ports of
certain devices, e.g. your Smart Home gateway, a webcam, a file server in your network etc.
Net Mask See Subnet Mask.
NTP Network Time Protocol. An IP based network protocol allowing automatic clock adjustment via the
internet. It synchronizes the time of a device, e.g. the Smart Home gateway, with the time of a NTP
server, which usually has a highly precise real time clock, such as an atomic clock or a GPS receiver.
NTP Server. A server providing the NTP service.