Network Configuration

The Network Configurations allow you to configure how the Internet Gate should be connected to its ambient networks.

The Network Configuration page has two parts: the upper half controls your WAN (Internet) connection; the lower half controls your LAN (local PCs) connection(s).

The default settings will work for users connecting to the Internet through an Internet Service Provider that distributes network settings automatically using DHCP.

Some of the settings are adjusted depending on what Operator you have choosen.

The Internet Gate is by default a router. It can however operate in other modes too. Read more about it on the operational modes page.

On units with multiple possible WAN interfaces (both ADSL and Ethernet) you can select which interface to use for WAN connection using the dropdown box.

By default DHCP is used to get WAN IP address and other settings automatically. The fields “IP Address”, “Subnet Mask”, “DNS Server” and “Default Gateway” will then be filled in automatically.

Some Internet Suppliers however use other protocols:

• PPPoE - As above, but the PPPoE protocol is used (PPP server supplies the IP address).
• PPPoA - As above, but the PPPoA protocol is used (PPP server supplies the IP address).
• Manual - The fields “IP address”, “Subnet mask”, “DNS server” and “Default Gateway” should be manually entered according to specifications from your Internet Supplier.
• Auto - Automatic search. Click “Search” to detect which of above connection types that you should use. A failed search means that no server is answering (possibly, you should then use the “Manual” option) or that the Internet connection is broken.

Some of these protocols require additional fields appearing below the Access type selection (user name, password, VCI, VPI) to be entered. Ask your Internet Supplier what to enter into those fields.

The Internet Gate can use a different MAC address than the unique one given to it in the factory. (MAC address cloning)

Entering a MAC address that is already in use on the network causes problems!

A dynamic DNS service is used to allow remote users access your server by name instead of IP number. It is especially useful if you do not have a static global IP address. The dynamic DNS server will automatically be notified of your new IP address when it changes.

Read more about dynamic DNS.

Enter the IP address of one or two DNS servers that shall be used for DNS name resolution (to easily locate Internet sites by merely writing their name).

If you use DHCP, PPPoE or PPPoA access types then these fields will be filled in automatically. If not, or you prefer to use some other DNS servers, then disable Obtain automatically and enter the values manually.

A Gateway is used to access the Internet. Enter its IP address, if your Internet Supplier has told you one.

The IP address of the Gateway must be on the same subnet as your WAN interface!

At DHCP, PPPoE or PPPoA this data will normally be automatically collected.

The Internet Gate can have multiple subnets behind it, allowing you to separate and protect data traffic between them.

The arrows in the back panel picture indicate which interfaces have which subnet.

Select how the contact will be used:

• inside - Connected computers will be protected by the firewall on a separate subnet (normal, recommended setting for most users).
• outside - Unprotected. Inside interfaces will be protected from this interface by the firewall. (Only for the advanced user!)
• DMZ - DeMilitarized Zone - Special subnet for webservers: can access WAN, but no connection at all to LAN.
• blocked - Connector not used and is switched off.
• isolated - Can only access WAN, but no connection at all to other LAN interfaces. (Same as DMZ.)
• off - Virtual access point is not used and is switched off. (AIR can not be switched off here - disable entire wireless on Wireless Settings page instead.)
• --> ET1 - Bridged to ET1. Uses same subnet as ET1 port, see ET1 port settings for details.
• --> ipwanx - Bridged to an extra WAN interface. Open the extra WAN interfaces page to see/edit this port's settings.