Moxa Technologies NPort 5400 Series - Manual (Page 34)

NPort 5400 Series User’s Manual Web Console Configuration
5-8
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
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 the computer users 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 the NPort’s DNS feature, you need to set the IP address of the DNS server to be
able to access the host with the domain name. The NPort 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.
The NPort plays the role of DNS client. Functions that support domain name in the NPort are
Time Sever IP Address, TCP Client-Destination IP Address, Mail Server, SNMP Trap IP
Address, and IP Location Server.
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. This string is usually set to the street
address where the NPort is physically located.
IP Address Report
When device servers in the NPort 5000 line are used in a dynamic IP environment, users must
spend more time with IP management tasks. For example, the NPort works as a server (TCP or
UDP), and 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 the server, the host must take care of what happens when the IP
changes.
Device servers in the NPort 5000 line 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