Features and Functions 
81150A and 81160A User’s Guide    277 
 
3.16.4  Subnet Mask (LAN)  
 
 
 
Subnetting allows the network administrator to divide a network into smaller 
networks to simplify administration and to minimize network traffic. The 
subnet mask indicates the portion of the host address to be used to indicate 
the subnet. 
 
 
  You need not set a subnet mask if DHCP is in use.  
  Contact your network administrator to find out whether subnetting is 
being used, and for the correct subnet mask.  
  Enter the subnet mask using the numeric keypad (not the knob).  
  The subnet mask is stored in non-volatile memory and does not 
change when power has been off or after a remote interface reset.  
 
 
  Press   and then the I/O Interfaces softkey. 
  Then select LAN, followed by IP Setup.  
  By default, DHCP is On. Select DHCP Off if necessary. Then select 
Subnet Mask.  
  There is no SCPI command to set a subnet mask.