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Default router address, Dns default domain, Dns primary name server – Visara SCON-20L Configuration Manual User Manual

Page 34: Dns secondary name server, Dns/ping response time, Snmp trap ip address, Tcp quiet time

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SCON-20L/22L/25L/28L Configuration Manual

TCP Quiet Time

TCP requires 4.5 minutes of recovery time after a device crashes or for a reboot, but LINCS’
IML time varies according to configuration and hardware installed. This field allows you to
define extra time beyond the normal boot time before TCP connections can be attempted.
Default value is 0. (As soon as LINCS has IMLed, TCP can attempt connections.)

Default Router Address

Enter the address of the router on the network. Obtain this value from the system
administrator. This router address must be on the same physical subnet as the IP address
assigned to this interface.

DNS Primary Name Server (for use with Telnet Host and LAN Printer Features)

The Domain Name System requires at least one name server address. The name server
resolves the address of the remote machine, by using its domain name database, and the
databases on other name servers. Entering an address enables the Domain Name System
feature that lets a TCP/IP user enter a DNS name for the TCP/IP host instead of the IP
address. Enter zeros in this field (or leave it blank) to disable the feature. To complete
information about the Domain Name system, you must also assign Dynamic IP Host
Class Access in the Resource Authorization Matrix of the Device Profile Panel for
displays.

DNS Secondary Name Server (for use with Telnet Host and LAN Printer Features)

Enter a value if you want to enable a secondary domain name server to function as a
backup to the primary domain name server. If the user makes two queries to the primary
server and they are not answered, LINCS will direct up to two queries to the secondary
domain name server.

DNS/Ping Response Time

This timer, given in tenths of seconds, determines the amount of time that is allowed for
a DNS or a Ping request to be answered before determining that a timeout has occurred.

DNS Default Domain (for use with Telnet Host and LAN Printer Features)

Use this field to specify an optional default Domain Name system label. The label
must not exceed 63 characters. The starting and end characters must be alphanumeric,
and the remaining characters must be alphanumeric characters or hyphens. The default
domain will be appended to any queries that are not fully expressed. For example,
sulu is translated to sulu.visara.com, if visara.com is the default domain.

SNMP Trap IP Address

This Destination IP Address defines where to send SNMP traps generated by LINCS.
If the IP Address is undefined, or defined as all 0's, traps are not generated. If non-
zero, traps are generated for link up, link down, cold start, and authentication errors.