Glossary - Matrox Iris GT MIL Installation And Technical Reference

84 Appendix A: Glossary

Glossary

• Auto IP.
Automatic IP. Auto IP is a client-side service that assigns a dynamic IP address
that, by default, might change each time your computer (and/or your Matrox
Iris GT) reboots. Auto IP is used when your Matrox Iris GT is configured to get
its IP address automatically from a DHCP server, and either there is no DHCP
server present or the DHCP server is not responding. Auto IP is a service of a
DHCP client.
• Auxiliary signal.
An auxiliary signal is a user-defined I/O signal that can have one or more additional
functions. For example, a signal that can be both an exposure signal and a
user-defined input signal, is an auxiliary signal. The signal's primary function is
displayed in brackets (for example, AUX(EXP) is used to denote an auxiliary signal
that is typically used to control an exposure).
• DHCP.
Dynamic host configuration protocol. DHCP is a protocol that requires a client
and a server. Your computer and Matrox Iris GT are DHCP clients. A DHCP
server serves DHCP client requests on a network and automatically assigns each
DHCP client a unique dynamic IP address. DHCP works with a DNS server to
associate a computer's name with its IP address so that, to connect to the computer,
you can use its name instead of its IP address. Netbios over TCP/IP (an older
client-side technology) can provide the name association whenever a DNS server
is not present on a LAN.
Note that if a DHCP server is not available, the Auto IP service of a DHCP
❖
client can assign your computer a unique dynamic IP address within a given
subnet.
• DNS.
Domain name service. DNS provides the association between a given IP address
and the name of the computer using that IP address. The association between an
IP address and a computer's name is stored in a DNS resolver cache, located on
the computer that requested the association. Without a DHCP server, if the IP