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Glossary
default gateway
DHCP
DHCP server
DNS
FRITZ!Box Fon WLAN 7113
see gateway
abbreviation for Dynamic Host Configuration Protocol
DHCP is a protocol for the dynamic negotiation of the
operating parameters for the TCP/IP protocol (TCP is a
transport protocol based on the Internet protocol).
The computers of a local IP network (DHCP clients) access
the DHCP server as part of their operating systems' start
procedure.
The central administration of the TCP/IP operation
parameters makes it possible to avoid address conflicts
caused by IP addresses accidentally assigned more than
once.
The DHCP server assigns each client an IP address that is
has not yet been assigned at the present time. The DHCP
server also informs the client of the IP addresses of the
DNS server to be used and of the default gateway. In
assigning the IP addresses the DHCP server selects from a
prescribed pool of IP addresses.
abbreviation for Domain Name System
Domain Name Service takes care of determining the IP
address for a given domain name. Domain Name Service
is running on every PC. It accepts the domain name
entered by a user and inquires about the corresponding IP
address at a DNS server known to the service. If a DNS
server cannot answer the inquiry itself, it can inquire
about the IP address (DNS resolution) at other DNS
servers.
If the Domain Name Service receives negative information
from the DNS server (domain name not known), it can
send inquiries to other DNS servers it knows or return a
corresponding error message to the user. If it receives the
desired IP address instead, the application can use the IP
address to retrieve the destination desired by the user.
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