Extron Electronics IPCP 505 User Guide User Manual
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IPCP 505 • Reference Information
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MAC (Media Access Control) Address
A unique hardware number given to devices that connect to a network such as the Internet.
When a computer or networking device (router, hub, interface, and the like) is connected
to a LAN or the Internet, a table (see ARP) relates the IP address of the device to its
corresponding physical (MAC) address on the LAN.
Ping
A utility/diagnostic tool that tests network connections. It is used to determine if the host
has an operating connection and is able to exchange information with another host.
Port number
A preassigned address within a server that provides a direct route from the application to
the transport layer or from the transport layer to the application of a TCP/IP system.
SSI (server side include)
A type of HTML instruction set that tells the IPCP (or some other web server) dynamically
which material to include in the contents of a web page or e-mail. SSI files typically have a
file extension of .shtml.
Static IP
An IP address that has been specifically (instead of dynamically—see
to a device or system in a network configuration. This type of address requires manual
configuration of the actual network device or system and can only be changed manually or
by enabling DHCP.
Subnet — See subnetwork.
Subnet address
The portion of an IP address that is specifically identified by the subnet mask as the
subnetwork.
Subnet mask
A 32-bit binary number (12 digit decimal number, xxx.xxx.xxx.xxx) used on subnets (smaller,
local networks) to help routers determine which network traffic gets routed internally (within
the subnetwork) to local computers and which network traffic goes out to the rest of the
network or the Internet. It is an address mask used to identify the bits of an IP address that
are used for the subnet address. Using a mask, the router does not need to examine all
32 bits, only those selected by the mask.
Subnetwork
A network that is part of a larger IP network and is identified by a subnet address. Networks
can be segmented into subnetworks to provide a hierarchical, multilevel routing structure.
TCP (Transmission Control Protocol)
A connection-oriented protocol defined at the Transport layer of the OSI reference model. It
provides reliable delivery of data.
TCP/IP (Transmission Control Protocol/Internet Protocol)
The communication protocol of the Internet. Computers and devices with direct access
to the Internet are provided with a copy of the TCP/IP program to allow them to send and
receive information in an understandable form.
Telnet
A standard terminal emulation utility/protocol that allows a computer to communicate with a
remote user/client. A user who wishes to access a remote system initiates a Telnet session
using the address of the remote client. The user may be prompted to provide a user name
and password if the client is set up to require them. Telnet enables users to log in on remote
networks and use those resources as if they were locally connected.
Tool tip
Text that appears when the mouse pointer hovers over a button or other item on screen.
UDP (User Datagram Protocol)
An Internet protocol for sending short packets of information quickly between networked
devices. It is faster than TCP and is often used for broadcast and multicast communication,
but it does not include data verification to ensure that all packets arrived at their destination.
URL (Uniform Resource Locator)
The address (such as www.extron.com) that lets a resource on the internet be identified,
located, and accessed.