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LAN

IPv6 Autoconfig

The IPv6 LAN Auto Configuration page allows you to configure settings pertaining to the IPv6 DHCP server.

OPTION

DEFINITION

Enable Unique Local

Addresses and Prefix

Advertisement

Enable the use of unique local addresses. The router will advertise the IPv6 prefix to new devices on the

network.

Randomly Generate

Randomly generates the unique local addresses and the prefix.

Statically Configure

Enter a static IPv6 address for the router if one has been assigned to you by your Internet Service Provider.

IPv6 LAN Applications

Enable IPv6 DHCP server

Enable DHCPv6 Server and

RADVD

The Router Advertisement Daemon (radvd) is an open-source software product that implements link-local

advertisements of IPv6 router addresses and IPv6 routing prefixes using the Neighbor Discovery Protocol (NDP)

as specified in RFC 2461. The Router Advertisement Daemon is used by system administrators in stateless

auto-configuration methods of network hosts on Internet Protocol version 6 networks.

When IPv6 hosts configure their network interfaces, they broadcast router solicitation (RS) requests onto the

network to discover available routers. The radvd software answers requests with router advertisement (RA)

messages. In addition, radvd periodically broadcasts RA packets to the attached link to update network hosts.

The router advertisement messages contain the routing prefix used on the link, the link maximum transmission

unit (MTU), and the address of the responsible default router.

Stateless

IPv6 hosts can configure themselves automatically when connected to a routed IPv6 network using Internet

Control Message Protocol version 6 (ICMPv6) router discovery messages. This type of configuration is suitable

for small organizations and individuals. It allows each host to determine its address from the contents of

received user advertisements. It makes use of the IEEE EUI-64 standard to define the network ID portion of the

address.

Stateful

This configuration requires some human intervention as it makes use of the Dynamic Host Configuration

Protocol for IPv6 (DHCPv6) for installation and administration of nodes over a network. The DHCPv6 server

maintains a list of nodes and the information about their state to know the availability of each IP address from

the range specified by the network administrator.

Enable MLD Snooping

Select whether to enable or disable MLD Snooping on the router. The Multicast Listener Discovery (MLD)

snooping function constrains the flooding of IPv6 multicast traffic on VLANs on the router.

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NAT

Virtual Servers

A virtual server allows you to direct incoming traffic from the WAN side to the Internal server with a private IP address on the LAN

side.

Click the Add button to add a virtual server.

FIELD

DESCRIPTION

Select a Service or custom

Server

Select a pre-configured port forwarding rule or choose custom server to create your own port

forwarding rule.

Server IP Address

Enter the IP address of the local server.

External Port Start

Enter the starting external port number (when custom server is selected). When a service is connected

this field will be completed automatically.

External Port End

Enter the ending external port number (when custom server is selected). When a service is connected

this field will be completed automatically.

Protocol

Options include TCP, UDP or TCP/UDP.

Internal Port Start

Enter the starting internal port number (when custom server is selected). When a service is connected

this field will be completed automatically.

Internal Port End

Enter the ending internal port number (when custom server is selected). When a service is connected

this field will be completed automatically.

Click Save/Apply to save your settings when you have finished creating virtual servers.

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Port Triggering

Some applications require specific ports in the Router’s firewall to be open for access by remote parties. Port Triggering op

ens up

the ‘Open Ports’ in the firewall when an application on the LAN initiates a TCP/UDP connection to a remote party using the

‘Triggering Ports’.

The Router allows the remote party from the WAN side to establish new connections back to the application on the LAN side

using the ‘Open Ports’. A maximum 32 entries can be configured.

To add a Trigger Port, press the Add button.

FIELD

DESCRIPTION

Select an Application or Custom

Application

A user can select a pre-configured application from the list or select the Custom Application option to

create custom application settings.

Trigger Port Start

Enter the starting trigger port number (when you select Custom Application). When an application is

selected the port range values are automatically entered.

Trigger Port End

Enter the ending trigger port number (when you select Custom Application). When an application is

selected the port range values are automatically entered

.

Trigger Protocol

Options include TCP, UDP or TCP/UDP.

Open Port Start

Enter the starting open port number (when you select Custom Application). When an application is

selected the port range values are automatically entered.

Open Port End

Enter the ending open port number (when you select Custom Application). When an application is

selected the port range values are automatically entered.

Open Protocol

Options include TCP, UDP or TCP/UDP.

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DMZ Host

The NF4V will forward IP packets from the Wide Area Network (WAN) that do not belong to any of the applications configured in

the Virtual Servers table to the DMZ host computer.

Enter the computer’s IP address and click

Apply to activate the DMZ host. To deactivate the DMZ Host function clear the IP

address field and press the Save/Apply button.

ALG

The Application Layer Gateway (ALG) is a feature which enables the router to parse application layer packets and support address

and port translation for certain protocols. We recommend that you leave these protocols enabled unless you have a specific

reason for disabling them.

Multi Nat

The Multi NAT page allows you to configure your own custom NAT rules.

To add a new rule, click the Add button and enter the details of the rule as required.

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1.

Select the type of NAT to use from the Rule Type drop down menu.

2.

Select the interface to which the NAT rule should apply.

3.

Enter the appropriate Internal Address Start and Internal Address End

4.

Enter the appropriate External Address Start and External Address End

Click Save/Apply to save the new Multi NAT configuration settings.

Security

Firewall

The NF4V has a firewall function which helps to keep you secure while allowing you to configure rules allowing certain types of

data through.

To use the firewall feature, begin by clicking the Add Firewall button to create a firewall. Then click the Add Rule button to create a

rule for the firewall. Enter the rules that you require for the firewall and then click the Save&Apply button to commit the settings.

MAC Filtering

The NF4V offers the ability to use MAC Address filtering on ATM PVCs. You can elect to block or allow connections based on

MAC Address criteria. The default policy is to allow connections which match the criteria.

Click Add to enter a new MAC Address filter.