FibroLAN Falcon-RX/812/G/A User Manual page 322

Falcon R-Class | User Guide
adjacent multicast routers to establish multicast group memberships. It is an integral part of the IP
multicast specification, like ICMP for unicast connections. MLD can be used for online video and
gaming and allows more efficient use of resources when supporting these uses.
MLD Querier
A router sends MLD Query messages onto a particular link. This router is called the Querier.
IMAP
IMAP is an acronym for Internet Message Access Protocol. It is a protocol for email clients to retrieve
email messages from a mail server.
IMAP is the protocol that IMAP clients use to communicate with the servers, and SMTP is the protocol
used to transport mail to an IMAP server.
The current version of the Internet Message Access Protocol is IMAP4. It is similar to Post Office
Protocol version 3 (POP3), but offers additional and more complex features. For example, the IMAP4
protocol leaves your email messages on the server rather than downloading them to your computer.
If you wish to remove your messages from the server, you must use your mail client to generate local
folders, copy messages to your local hard drive, and then delete and expunge the messages from the
server.
IP
IP is an acronym for Internet Protocol. It is a protocol used for communicating data across an internet
network.
IP is a "best effort" system, which means that no packet of information sent over is assured to reach
its destination in the same condition it was sent. Each device connected to a Local Area Network
(LAN) or Wide Area Network (WAN) is given an Internet Protocol address, and this IP address is used
to identify the device uniquely among all other devices connected to the extended network.
The current version of the Internet protocol is IPv4, which has 32-bits Internet Protocol addresses
allowing for in excess of four billion unique addresses. This number is reduced drastically by the
practice of webmasters taking addresses in large blocks, the bulk of which remain unused. There is a
rather substantial movement to adopt a new version of the Internet Protocol, IPv6, which would
have 128-bits Internet Protocol addresses. This number can be represented roughly by a three with
thirty-nine zeroes after it. However, IPv4 is still the protocol of choice for most of the Internet.
IPMC
IPMC is an acronym for IP MultiCast.
IPMC supports IPv4 and IPv6 multicasting. IPMCv4 denotes multicast for IPv4. IPMCv6 denotes
multicast for IPv6.
IP Source Guard
IP Source Guard is a secure feature used to restrict IP traffic on DHCP snooping untrusted ports by
filtering traffic based on the DHCP Snooping Table or manually configured IP Source Bindings. It helps
prevent IP spoofing attacks when a host tries to spoof and use the IP address of another host.
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