The IP address to which the Intermec computer sends Domain Name System (DNS) requests when the Primary DNS server is not responding. After you change this parameter, turn the Intermec computer off and then on for the change to take effect.
The default setting for the Intermec computer is DHCP enabled. You will not be able to manually set the Primary DNS Server unless you disable DHCP.
0.0.0.0 (no Secondary DNS server)
Communications > 802.11 Radio > IP Settings > Secondary DNS
or
Communications > Ethernet Adapter > IP Settings > Secondary DNS