XtendLan XL-EFM404V, Руководство пользователя

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UDP (User Datagram Protocol) offers only a minimal transport service (non-guaranteed datagram delivery) and gives
applications direct access to the datagram service of the IP layer. UDP is used by applications that do not require the
level of service of TCP or that wish to use communications services (e.g., multicast or broadcast delivery) not available
from TCP.
3.5.9. DMZ
In computer security, DMZ (demilitarized zone) is a physical or logical sub-network that contains and exposes an
organization's external services to a larger untrusted network, usually the Internet. The term is normally referred to as
a DMZ by IT professionals. It is sometimes referred to as a Perimeter Network. The purpose of a DMZ is to add an
additional layer of security to an organization's LAN (Local Area Network); an external attacker only has access to
equipment in the DMZ, rather than any other part of the network.
If enabled this feature, allows one or more computers on your LAN to be exposed to all users on the internet. You can
set a DMZ PC for each WAN IP address. If you only have 1 WAN IP address, only 1 DMZ PC can be used.
3.1.6. DDNS
DDNS (Dynamic DNS Free) allows you to create a hostname that points to your home or office IP address, providing an
easy-to-remember URL for quick access.
You must register for the service at one of the listed service providers. You can reach the service provider’s Web Site by
selecting them in the list. Apply for a domain name, and ensure it is allocated to you.