Patent ID: 9319315
Filing Date: 2016-04-19
CPC Classification: H04L

Claim Text:
1. A method in a proxy server of a cloud-based proxy service, comprising: receiving, from a client, a first packet that includes a first incoming request for an action to be performed on an identified resource, wherein the first packet is received at the proxy server as a result of a Domain Name System (DNS) request for a domain corresponding to the identified resource resolving to an Internet Protocol (IP) address of the proxy server; selecting a first IP address from a plurality of IP addresses of a same IP protocol version type of the proxy server for use as a source IP address for a second packet that carries a first outgoing request to be transmitted by the proxy server to a destination origin server, wherein the step of selecting is based at least in part on a set of one or more parameters associated with the first packet; transmitting the second packet that includes the first outgoing request to the destination origin server that hosts the identified resource, wherein the first outgoing request is based on the first incoming request, wherein the second packet includes the selected first IP address as the source IP address of the second packet; receiving a third packet that includes a first incoming response from the destination origin server in response to the first outgoing request; and transmitting a fourth packet to the client, the fourth packet including a first outgoing response that is based on the first incoming response.