Product Overview
Dlink DRO-220i User Guide
12
Network Address Translation (NAT)
NAT enables the router to act as an address translation agent between the Internet (public
network) and the local (or private) network. The router supports all the combinations of
NAT models like
Many to Many
,
Many to One
and
One to One
to provide internet access
to LAN client. And the
Virtual Server
(or Port Forwarding) feature enables remote access
to the Company Servers (HTTP/FTP etc) from WAN.
VoIP enables voice communication to use the same infrastructure as data in your
network; thus resulting in significant cost reductions. Session Initiation Protocol (SIP) is
widely used for VoIP calls, and does not work behind NAT. The
SIP-ALG
feature in the
router will ensure that SIP calls can be successfully established, even when NAT is
performed at the router. SIP-ALG overcomes the need for STUN support at VoIP end
points behind NAT.
Quality of Service
The router provides sophisticated Quality of Service (QoS) algorithm to effectively use
the available WAN bandwidth. This feature allows prioritization and bandwidth
reservation with upper ceiling for each class of service and enables optimal dynamic
utilization of bandwidth while guaranteeing highest quality voice and video services.
DHCP Server
The router provides a built-in DHCP Server/Relay for assigning network settings for the
LAN clients. The DHCP Server also supports reservation of IP Addresses for specific
hosts (based on MAC address). The DHCP Relay in the router enables LAN clients to use
a DHCP Server connected to WAN Port, by relaying the DHCP messages between the
LAN and WAN subnet.
Tools
The router supports various tools to manage and monitor the device.
Syslog -
The Router can send the Syslog messages to the configured server to aid
in network administration.
NTP -
The administrator can configure the system date and time manually. Or he
can use NTP feature to automatically synchronize the router’s time with specified
global time servers.
Configuration upload/download -
This tool allows the administrator to download
the router configuration onto the local hard disk as a backup. The same
configuration can be later uploaded to restore the device to its original settings.
