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RARP
: Reverse Address Resolution Protocol. This IP
protocol provides a way for computers to determine their
own IP addresses when they only know their hardware
address (i.e., MAC addresses). Certain types of computers,
such as diskless workstations, must use RARP to
determine their IP address before communicating with
other network devices.
AppleTalk
: A networking protocol used in for Apple
Macintosh® networks.
NetBEUI
: NetBIOS Enhanced User Interface. On many
LAN operating systems, the NetBEUI protocol provides the
method by which computers identify themselves to and
communicate with each other.
IPX
: Internetwork Packet Exchange. A networking protocol
used on Novell Netware ®-based LANs.
BDPU
: Bridge Protocol Data Unit. BPDUs are data
messages that are exchanged across the switches
between LANs that are connected by a bridge. BPDU
packets contain information on ports, addresses, priorities
and costs, and are exchanged across bridges to detect and
eliminate loops in a network.
ARP
: Address Resolution Protocol. Computers on a LAN
use ARP to learn the hardware addresses (i.e., MAC
addresses) of other computers when they know only their
IP addresses.
IPV6 Multicast
: IP Multicasting under IP Protocol version 6.
IP Multicast is an extension to the IP protocol. It enables
individual packets to be sent to multiple hosts on the
Internet, and is often used for handling e-mail mailing lists
and teleconferencing and videoconferencing.
802.1Q:
This IEEE specification defines a protocol for
virtual LANs on Ethernet networks. A virtual LAN is a group
of PCs that function as a local area network, even though
the PCs may not be physically connected. They are
commonly used to facilitate administration of large
networks.
Click on the
Submit
button when completed and make sure
to
Commit & Reboot
.
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9.8 DDNS
Click on the
DDNS
link to configure and add dynamic DNS
entries. Dynamic DNS (DDNS) is a service that facilitates
outside Internet access to a LAN host even when the host's
dynamically-assigned IP address changes frequently.
DDNS is useful when you have a host (running for example, a
web server) that receives a dynamically assigned IP address
from a DHCP server. A user on the Internet would typically
access the host by entering its name in their web browser. A
DNS server on the web would then resolve the name to its
associated numeric IP address, as required for Internet protocol
processing. However, when a host's IP address is dynamically
assigned (for example, by a DHCP server), it may change
frequently. In this scenario, a DNS server may have outdated
data and may not be able to resolve a host name to the current
IP address.
When a host is registered with a DDNS service provider, the
provider is automatically notified by the host of any change in
its IP address and the provider then propagates the change
throughout the DNS server system.
Click on the
Add
Service
button to a new DDNS entry.
