Chapter 4. Network Configuration
Basic Configuration
On the Basic Configuration page, general settings for the Telecommuting Module are made. The most important ones for getting started are the default gateway and, for SIP, the DNS server.
General
Name of this Telecommuting Module
Here, you can give your 3Com VCX IP Telecommuting Module a name. The name of the Telecommuting Module is displayed in the title bar of your web browser. This can be a good idea if you administer several Telecommuting Modules. The name is also used if you use SNMP and when you export log files into the WELF format.
Default domain
Here, you can enter a default domain for all settings. If a default domain is entered, the Telecommuting Module will automatically assume that an incomplete computer name should be completed with the default. If, for example, Default domain contains company.com, you could as the name of the computer axel.company.com use only axel. If no default domain should be used, the Default domain field should contain a single dot (.).
IP policy
Here, you specify what will happen to IP packets which are neither SIP packets, SIP session media streams, or Telecommuting Module administration traffic. Discard IP packets means that the Telecommuting Module ignores the IP packets without replying that the packet did not arrive. Reject IP packets makes the Telecommuting Module reply with an ICMP packet telling that the packet did not arrive.
Policy For Ping To the Telecommuting Module
Here, you specify how the Telecommuting Module should reply to ping packets to its IP addresses. You can choose between Never reply to ping, Only reply to ping from the same interface and Reply to ping to all IP addresses. Only reply to ping from the same interface means that the ping request should originate from a network which is directly connected to the pinged interface of the Telecommuting Module or from a network to which there exists a static route from the pinged interface, or the request will be ignored.
Ping is a way of finding out whether a computer is working. See appendix C of the User Manual for further information on ping.
Default Gateways
A Default Gateway is the IP address of a router that is used to contact the outside world. This IP address is usually the firewall. Default Gateway must be an IP address from one of the Directly Connected Networks of the Telecommuting Module’s interfaces. See appendix C of the User Manual, for further description of routers/gateways.
The Telecommuting Module must have at least one default gateway to work. You can enter more than one default gateway. The Telecommuting Module will use one of them until it stops responding, and then switch to the next one.
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