ONT-2-E4xxxi Multi-service Residential Gateway Series Hardware Installation Guide
TM 87-10879 Rev. A
UNRELEASED DRAFT
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2.3.2
Dynamic Domain Name System (DDNS)
A DNS Relay provides an automatic way to associate a domain name (a user-friendly name such as
www.yahoo.com) and IP address of a service or device. When a local machine sets its DNS server with
this relay’s IP address, every DNS conversion request packet from the PC to this gateway will be for-
warded to the real DNS in the outside network.
The DDNS service allows you to alias a dynamic IP address to a static hostname. This dynamic IP ad-
dress is the WAN IP address. For example, to use the service, you must first apply for an account from a
DDNS service, such as http://www.dyndns.org/. More than five (5) DDNS servers are supported.
2.3.3
Dynamic Host Configuration Protocol (DHCP) Client and Server
As part of the Residential Gateway features, the ONT includes a DHCP server that can serve IP ad-
dresses to CPEs attached to the LAN ports. From the WAN side, the ONT’s DHCP client can obtain a
WAN IP address directly from the Internet Service Provider (ISP) automatically. For LAN-attached
customer devices, the DHCP server in the ONT can allocate a range of client IP addresses and distribute
them, including IP address and subnet mask, as well as DNS IP address to local computers. Layer 2
DHCP relay (with Option 82) is also supported.
2.3.4
Security Firewall and Rich Packet Filtering
A firewall with rich packet filtering process not only filters the packet based on an IP address, but also
based on Port numbers. Packets will be filtered from and to the Internet, providing a higher level of
security control.
2.3.5
Advanced Quality of Service,
The ONT-2-E4xxxi Multi-service Residential Gateway Series supports advanced QoS features, in-
cluding rate limiting on a per port basis, bandwidth management, and Traffic Prioritization based on
Layer 2 Class of Service (802.1p) and Layer 3 DiffServ markings.
2.3.6
Virtual Server
Users can specify services to be visible from the WAN side of the EPON Multi-service Gateway. The
gateway can detect incoming service requests and forward either a single port or a range of ports to the
specific local computer for dispensation. For example, a user can assign a PC in the LAN acting as a
WEB server inside and expose it to the outside network. Outside users can browse inside web servers
directly while it is protected by NAT. A DMZ host setting is provided to a local computer exposed to the
outside network.
2.3.7
Flexible Management Interfaces including Web GUI
The ONT supports Ethernet OAM per IEEE 802.3 specifications through flexible management inter-
faces with LAN and WAN ports. Users can use Telnet, Web GUI, and SNMP through the WAN and
LAN ports to configure and manage the device. Support for Trident7 EMS is built in for service provi-
sioning and management of data, IPTV video, and VoIP services. Provisioning of Wi-Fi and RG services
are supported through a separate Web-based GUI interface. The device can be upgraded to the latest
firmware remotely through the Web-based GUI and/or the Trident7 EMS.