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NE-4100 Series User’s Manual Web Console Configuration
6-7
DNS server 1 / DNS sever 2
Setting Factory Default Necessity
E.g., 192.168.1.1
(IP addresses of the form x.x.x.0 and
x.x.x.255 are invalid.)
None Optional
Domain Name System (DNS) is how Internet domain names are identified and translated into IP
addresses. A domain name is an alphanumeric name, such as moxa.com, that it is usually easier to
remember. A DNS server is a host that translates the text-based domain name into the
corresponding numeric IP address which is used to establish a TCP/IP connection. When the user
enters a website address, the computer asks a DNS server for the website’s IP address to connect to
the web server.
When a DNS server is specified, the module acts as DNS client and will allow domain names
instead of IP addresses to be used on the web console. The following web console fields support
the use of domain names: Time Sever IP Address, TCP Client-Destination IP Address, Mail Server,
SNMP Trap IP Address, and IP Location Server. Two DNS servers may be specified, DNS server
1 and DNS server 2. DNS server 2 is included for use when DNS sever 1 is unavailable.
SNMP Settings
Community name
Setting Factory Default Necessity
1 to 39 characters
(E.g., Support, 886-89191230 #300)
public Optional
A community name is a plain-text password mechanism that is used to weakly authenticate queries
to agents of managed network devices.
Contact
Setting Factory Default Necessity
1 to 39 characters
(E.g., Support, 886-89191230 #300)
None Optional
The SNMP contact information usually includes an emergency contact name and telephone or
pager number.
Location
Setting Factory Default Necessity
1 to 39 characters
(E.g., Floor 1, office 2)
None Optional
Enter a location string for SNMP agents. This string is usually set to the street address where the
module is physically located.
IP Address report
When the module is used in a dynamic IP environment, additional time must be spent on IP
management tasks. For example, when a module is operating as a server (TCP or UDP modes), a
PC operating as a client will need to know the module’s IP address. If the DHCP server assigns a
new IP address to the module, the PC must have some way of obtaining the module’s new IP
address. The IP Address report fields are used to set up periodic reporting of the module’s IP
address when the module’s IP address is assigned by a server. The IP address report is sent
automatically at regular intervals to an IP address and TCP port number of your choice. There are
two ways view the module’s IP address report on a PC: