User guide

BASIC NETWORK
DMZ
DMZ (DeMilitarized Zone) Host is a host without the protection of firewall. It allows a computer to be exposed to
unrestricted 2-way communication for Internet games, Video conferencing, Internet telephony and other special
applications. If a specific application is blocked by NAT mechanism, you can indicate that LAN computer as a DMZ
host to solve this problem.
Note: This feature should be used only when needed.
Routing Setup
If there is more then one router and subnet, enable routing function to allow packets to find proper routing paths
and allow different subnets to communicate with each other.
Static Routing
For static routing, you can specify up to 32 routing rules. These rules allow you to determine which physical
interface addresses are being utilized for outgoing data. For each rule, enter the destination IP address, subnet
mask, gateway, and hop, then enable or disable by using the associated checkbox.
Dynamic Routing
Dynamic routing is used when there are lots of subnets in your network. This device supports RIPv1/RIPv2, OSPF,
and BGP dynamic routing protocols.
■ Routing Information Protocol (RIP): This protocol will exchange information about destinations for
computing routes throughout the network. Only select RIPv2 if you have different subnets in your network.
■ OSPF: This is an interior gateway protocol that routes IP packets solely within a single routing domain.
■ BGP: Border Gateway Protocol is the protocol backing the core routing decisions on the Internet. It
maintains a table of IP networks which designate network reachability among autonomous systems.
Routing Information
A routing table, or routing information base (RIB), is a data table stored in a router or networked computer that
lists the routes to particular network destinations. The routing table contains information about the topology of
the network immediately around it. The routing information page displays the routing table maintained by this
device. It is generated according to your network configuration.
Client/Server
Dynamic DNS
To host a server on a changing IP address, you have to use dynamic domain name service (DDNS). DDNS maps the
name of your host to the current IP address, which changes each time you connect to your ISP. Before you enable
Dynamic DNS, you need to register an account on one of the DDNS servers in the Provider list.
■ DDNS: Check to enable.
■ Provider: The DDNS provider supports service for you to bind your IP with a certain domain name.
■ Host Name: Register a domain name to the DDNS provider.
■ Username/E-mail: Enter username or e-mail based on the DDNS provider requirements.
■ Password/Key: Enter password or key based on the DDNS provider requirements.
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rCell 500 Series Router User Guide