Product Overview
Dlink DRO-210i User Guide 10
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.
VPN
Virtual Private Networks (VPN) feature enables secure connectivity between multiple
location offices (Gateway mode) and/or remote users (Dynamic VPN Mode). The IPSec
VPN includes strong encryption and authentication mechanisms to encapsulate data to
protect it from potential hackers. DRO Business Gateways provide high performance IP-
Sec VPN tunneling with built-in Hardware Accelerator for DES, 3DES, AES crypto
algorithms. Apart from Gateway mode, the router also allows roaming users in Dynamic
VPN Mode, which makes it extremely useful for tele-workers and on-the-go sales force
to access data on the corporate network.
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 assi gning network settings for the
LAN clients. The DHCP Server also supports reservation of IP Addresses for sp ecific
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.