Section 5

IP Access Configuration & Operation

IP auto configuration

With this option you can control if the CAT-32 IP should obtain its network settings from a DHCP or BOOTP server. For DHCP, select dhcp, and for BOOTP select bootp. If you choose none then IP auto configuration is disabled.

IP address

IP address in the usual dot notation.

Subnet Mask

The net mask of the local network.

Gateway IP address

In case the CAT-32 IP is accessible from networks other than the local one, this IP address must be set to the local network router's IP address.

Primary DNS Server IP Address

IP address of the primary Domain Name Server in dot notation. This option may be left empty; however, the CAT-32 IP will not be able to perform name resolution.

Secondary DNS Server IP Address

IP address of the secondary Domain Name Server in dot notation. It will be used in case the Primary DNS Server cannot be contacted.

Remote Console and HTTPS port

Port number at which the CAT-32 IP’s Remote Console server and HTTPS server are listening. If left empty the default value will be used.

HTTP port

Port number at which the CAT-32 IP’s HTTP server is listening. If left empty the default value will be used.

Telnet port

Port number at which the CAT-32 IP’s Telnet server is listening. If left empty the default value will be used.

Bandwidth limitation

The maximum network traffic generated through the CAT-32 IP’s Ethernet device. Value in Kbit/s.

Enable Telnet access

Set this option to allow access to ARA express using the Telnet Gateway (see the Section

called Telnet Console)Disable Setup Protocol

Enable this option to exclude the CAT-32 IP from the setup protocol.

Section 5

IP Access Configuration & Operation

Dynamic DNS

A freely available Dynamic DNS service (dyndns.org) can be used in the following scenario (see illustration below)

The CAT-32 IP is reachable via the IP address of the DSL router, which is dynamically assigned by the provider. Since the administrator does not know the IP address assigned by the provider, the CAT-32 IP connects to a special dynamic DNS server in regular intervals and registers its IP address there. The administrator may contact this server as well and pick up the same IP address belonging to his device.

The administrator has to register a CAT-32 IP that is supposed to take part in the service with the Dynamic DNS Server and assign a certain hostname to it. He will get a nickname and a password in return. This account information, together with the hostname, is needed in order to determine the IP address of the registered CAT-32 IP.

You have to perform the following steps in order to enable Dynamic DNS:

￿Make sure that the LAN interface of the CAT-32 IP is properly configured.

￿Open the Dynamic DNS Settings configuration dialog

￿Enable Dynamic DNS and change the settings according to your needs (see the next page).

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