Patent ID: 9628442
Date: 2017-04-18
CPC Classifications: G06F,H04L

Claim:
1. A method comprising: at a network device through which client devices communicate with a network: creating an Internet Protocol (IP) address-based trust database that maps IP addresses each to a respective trust metric for a domain name associated with each said IP address wherein the respective trust metric for the domain name includes a respective domain name category represented as a number; intercepting an IP packet sent from a client device to the network and that indicates a destination IP address for a network-accessible resource associated with a domain name; using the destination IP address in the intercepted IP packet, retrieving from the IP address-based trust database the domain name trust metric, including the respective domain name category, mapped to the destination IP address; and processing IP packets received from the destination IP address based on the retrieved domain name trust metric and a predetermined trust metric criterion, the processing including: comparing the retrieved domain name category to a predetermined number range representative of the predetermined trust metric criterion to determine whether the retrieved domain name category is in the predetermined number range and, based on results of the comparing: