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NPort 5110 Series User’s Manual Web Console Configuration
5-7
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 5110’s DNS feature, you need to configure the DNS server. Doing so allows
NPort 5110 to use a host’s domain name to access the host. NPort 5110 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 5110 plays the role of DNS client, in the sense that the NPort 5110 will actively query the
DNS server for the IP address associated with a particular domain name. NPort 5110 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 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
Specify the location string for SNMP agents such as NPort 5110. This string is usually set to the
street address where the NPort 5110 is physically located.
IP Address Report
When NPort 5110 products are used in a dynamic IP environment, users must spend more time
with IP management tasks. For example, if NPort 5110 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 5110, the host must have some way of determining NPort 5110’s new IP
address.
NPort 5110 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 5110’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
“Auto IP report protocol”.