Moxa Technologies NPort 5200 Series User Manual page 31

DNS server 1 / DNS server 2
Setting
E.g., 192.168.1.1
(IP addresses of the form x.x.x.0 and
x.x.x.255 are invalid.)
When the user wants to visit a particular website, the computer asks a Domain Name System
(DNS) server for the website's correct IP address, and then the computer uses the response to
connect to the web server. DNS is the way that 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 this kind of text-based
domain name into the numeric IP address used to establish a TCP/IP connection.
In order to use NPort 5200's DNS feature, you need to configure the DNS server. Doing so allows
NPort 5200 to use a host's domain name to access the host. NPort 5200 provides DNS server 1
and DNS server 2 configuration items to configure the IP address of the DNS server. DNS Server
2 is included for use when DNS sever 1 is unavailable.
NPort 5200 plays the role of DNS client, in the sense that the NPort 5200 will actively query the
DNS server for the IP address associated with a particular domain name. NPort 5200 functions
that support domain name are Time server, Destination IP Address in TCP Client mode, Mail
Server, SNMP trap server, and Auto report to IP.
SNMP Settings
Community name
Setting
1 to 39 characters
(E.g., Support, 886-89191230 #300)
A community name is a plain-text password mechanism that is used to weakly authenticate
queries to agents of managed network devices.
Contact
Setting
1 to 39 characters
(E.g., Support, 886-89191230 #300)
The SNMP contact information usually includes an emergency contact name and telephone or
pager number.
Location
Setting
1 to 39 characters
(E.g., Floor 1, office 2)
Specify the location string for SNMP agents such as NPort 5200. This string is usually set to the
street address where the NPort 5200 is physically located.
IP Address Report
When NPort 5200 Series products are used in a dynamic IP environment, users must spend more
time with IP management tasks. For example, if NPort 5200 works as a server (TCP or UDP),
then the host, which acts as a client, must know the IP address of the server. If the DHCP server
assigns a new IP address to NPort 5200, the host must have some way of determining NPort
5200's new IP address.
NPort 5200 Series products help out by periodically reporting their IP address to the IP location
server, in case the dynamic IP has changed. The parameters shown below are used to configure
the Auto IP report function. There are two ways to develop an "Auto IP report Server" to receive
NPort 5200's Auto IP report.
1. Use Device Server Administrator's IP Address Report function.
2. "Auto IP report protocol", which can automatically receive the Auto IP report on a regular
basis, is also available to help you develop your own software. Refer to Appendix E for the
Web Console Configuration
Factory Default
None
Factory Default
public
Factory Default
None
Factory Default
None
NPort 5200 Series User's Manual
Necessity
Optional
Necessity
Optional
Necessity
Optional
Necessity
Optional
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