Master Control - Berker

4.2.4.3.5 IP settings
Basic principles
If the panel is connected to a local network via the Ethernet interface and the "e-mail" and
"RSS newsfeeds" services, various IP configuration parameters must be set. In addition, the
same IP settings are required if the panel is to be operated 'remotely' by the additional PC Client
software. The IP parameters are set either on site on the panel on the screen page "IP settings"
(Service page -> Administrator -> IP settings) or using the PC Client software for remote
operation.
For all the services, the panel communications with other network subscribers or with the Internet
via the higher-level TCP-IP communication protocol (Transport Control Protocol / Internal
Protocol) allowing secure data communication, independent of hardware and software. For this
protocol to function correctly - even beyond local network borders - the following network settings
must be made...
IP address:
Each subscriber in a network (LAN, WAN) has their own unique IP address. This Internet address
is a 32 bit value, always specified in the form of four decimal numbers separated by dots
(8 bit values) for easier comprehension. This method of display is called dot notation. Here is an
example of a possible IP address of the panel: 192.168.1.2 .
The panel also required a clear IP address for identification and communication in the local network.
Subnet mask:
The Internet address is subdivided into the Net ID and Host ID to distinguish between the individual
networks. The Net ID addresses the network and the Host ID addresses the network subscribers
(e.g. PC or panel). Telephone numbers are structured in a similar way. Here too, a distinction
is made between the dialling code and the actual telephone number. The Net ID shows
whether the recipient, to whom a network connection is to be setup, is in the same individual
network as the sender or not. If this part of the IP address is the same for both the sender and
the recipient, then both communication partners are located in the same network. If it does not
match, then the recipient is located in a different network.
Which part of the IP address belonging to the Net ID and which to the Host ID depends on the
size of the individual network (subnet) and is primarily determined by the subnet mask.
Just like the IP address, the subnet mask is also a 32 bit value, shown in dot notation. The panel
also requires a subnet mask in the IP configuration to detect the relationship to the network
topology.
Standard gateway:
If the subnet mask is viewed in binary, then the section of the Net ID is filled with ones and the
section of the Host ID with zeroes. With each data packet to be sent, the sender compare their
own IP address with that of the recipient. In so doing, the bits of the Host ID beyond the part of
the subnet mask filled with zeroes is hidden. If the evaluated bits of the two IP address are
identical, then the network subscriber to be contacted is in the same subnet. If just one of the
evaluated bits is different, then the selected network subscriber is not located in the same subnet.
In this case, the data packet must be handed over to a standard gateway to be switched into
the target network - for example, the Internet. In many cases, the standard gateway is - and
this occurs extremely often in private networks - a DSL router, which connects the local network
with the Internet.
The panel also requires the IP address of a standard gateway when communication beyond the
borders of the local network is necessary.
DNS Server:
There are millions of IP addresses on the Internet. Users would have difficulty handling the different
addresses - even in smaller home networks - because the long numbers are either very
difficult to remember or are completely unknown. This is where the DNS (Domain Name Sys-
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Software "...590101"
Functional description
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