Description: vRtrIfDHCPAutoFilter allows the router to automatically build anti-spoofing filter lists. When this object is set to a non-zero value, auto-filtering is enabled and a filter allowing only PPPoE or DHCP traffic is established on the interface. The non-zero value indicates the maximum number of entries that the auto-filter can have. These entries are created by the agent upon snooping a valid DHCP Reply packet and are used to allow traffic sourced by the given DHCP-assigned IP address.