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3.) Info
If you click on the “Info” button you will be provided with information on both transfer directions
(“PC --> Casablanca” and “Casablanca --> PC”).
9.5 Background knowledge
DHCP stands for “Dynamic Host Conguration Protocol”
-> Automatic connection to the network through a DHCP server (e.g. present in the local DSL router)
upon request by the DHCP client (system, PC)
Basic functioning: when a network connection is initialized and DHCP is activated, the client (i.e.
the PC or in our case the system) sends a query to the network asking whether a server exists that
can assign an IP address to the client. If this kind of server exists, additional data can then also be
assigned such as the hostname, the address of the relevant DNS server, etc.
DNS stands for “Domain Name System”
-> Management and resolution of “Names<->IP” allocations by the DNS server (e.g. present in the
local DSL router)
The DNS server is like a telephone directory on the network. Since it is easier to remember a name
(like “Solitaire.mynet.com”) rather than an address (like “123.456.7.890”) DNS servers are used on
networks to simplify our work.
IP network classes and subnet masks:
Version 4 IP addresses (IPv4) are made up of 32 bits that are generally written in decimal form in
four segments of 8 bits each. The classical subdivision of the address space that arises from the
32-bit addresses (a total of 4,294,967,296 computers can be addressed) provides for three network