Description: The order of preference for cable network and Internet DNS servers, as listed in DHCP option 6 (Domain Server). Any time the CDC receives valid IP address information within DHCP Option 6, as part of lease acquisition or renewal of a WAN-Man or WAN-Data IP, it must update this information into this table. As entries in DHCP Option 6 are listed in order of preference, the highest priority entry in DHCP Option 6 must correspond to the row with a cabhCdpWanDnsServerOrder with a value of 1. If DHCP Option 6 contains 1 valid IP address, the PS MUST update the row with a cabhCdpWanDnsServerOrder value of 1 and MUST NOT modify rows with cabhCdpWanDnsServerOrder values of 2 & 3 (if they exist). If DHCP Option 6 contains 2 valid IP addresses, the PS MUST update the rows with cabhCdpWanDnsServerOrder values of 1 and 2 and MUST NOT modify the row with cabhCdpWanDnsServerOrder value of 3 (if it exists). If DHCP Option 6 contains 3 valid IP addresses, the PS MUST update rows with cabhCdpWanDnsServerOrder values of 1, 2, and 3. Any DNS server information included in DHCP Option 6 beyond primary, secondary and tertiary will not be represented in this table.