Lantronix 900-422 User Manual

Page of 87
9: Setup Mode: Advanced Settings 
 XPress DR+ User Guide 
64 
ARP Cache timeout in seconds 
Whenever the unit communicates with another device on the network, it adds an entry 
into its ARP table. The ARP Cache timeout option allows you to define how many 
seconds (1-600) the unit will wait before timing out this table.  
ARP Cache timeout in s (1s – 65s; 0s=disable): (600)? _ 
Disable Monitor Mode at bootup 
This option allows you to disable all entries into Monitor Mode during startup, except for 
the xxx sequence. This prevents entry using yyyzzzxx1, and yy1 key sequences (only 
during the bootup sequence). The default setting for Monitor Mode at bootup is N (No). 
(See 
Disable Monitor Mode @ bootup (N) ? _ 
HTTP Port Number 
This option allows the configuration of the web server port number. The valid range is  
1-65535. The default HTTP port number is 80
HTTP Port Number : (80) ? _ 
MTU Size 
The Maximum Transmission Unit (MTU) is the largest physical packet size a network can 
transmit for TCP and UDP. Enter between 512 and 1400 bytes. The default setting is 
1400 bytes. 
MTU Size: (1400) ? _ 
Enable alternate MAC 
If necessary, enable the alternate MAC address (if specified in the OEM setup record). 
Enable alternate MAC (N) ? _ 
Security Settings (Option 6) 
You can change security settings by means of Telnet or serial connections only, not on 
the Web-Manager. We recommend that you set security over the dedicated network or 
over the serial setup to prevent eavesdropping. 
Caution:
 Disabling both Telnet Setup and Port 77FE will prevent users from 
accessing Setup Mode from the network. Disabling Port 77FE also disables the 
Web from configuring the device. 
Select 6 to configure security settings.