Patent ID: 9473586
Filing Date: 2016-10-18
CPC Classification: H04L

Claim Text:
1. A method performed by data processing apparatuses, the method comprising: receiving, from a device over a network, a first request that includes an address; in response to receiving the first request, determining, based at least in part on information included in the first request, that the first request is to be redirected; in response to determining that the first request is to be redirected, sending, by a network gateway and to the device over the network, a redirect message that includes the address and a port number; receiving, by a proxy server that is a different device than the network gateway and from the device over the network, a second request that includes the address and the port number, wherein the proxy server serves resources through the Web Cache Communication Protocol (WCCP); determining that the port number is included in a predetermined list of port numbers; responsive to determining that the port number is on the predetermined list of port numbers, modifying the second request by removing the port number; and sending the modified second request to the address.