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NPort IA5150/5250 Series User’s Manual Web Console Configuration
5-8
IP configuration
Setting Factory Default Necessity
Static
DHCP
DHCP/BOOTP
BOOTP
Static Required
ATTENTION
In Dynamic IP environments, the firmware will retry 3 times every 30 seconds until network
settings are assigned by the DHCP or BOOTP server. The Timeout for each try increases from 1
second, to 3 seconds, to 5 seconds.
If the DHCP/BOOTP Server is unavailable, the firmware will use the default IP address
(192.168.127.254), Netmask, and Gateway for IP settings.
DNS server 1 / DNS server 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 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 IA5150/5250’s DNS feature, you need to configure the DNS server. Doing
so allows NPort IA5150/5250 to use a host’s domain name to access the host. NPort IA5150/5250
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 IA5150/5250 plays the role of DNS client, in the sense that the NPort IA5150/5250 will
actively query the DNS server for the IP address associated with a particular domain name. NPort
IA5150/5250 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 authenticate weakly queries
to agents of managed network devices.
Contact
Setting Factory Default Necessity
1 to 39 characters
(E.g., Support, 886-89191230 #300)
None Optional