Controlling incoming traffic

A computer readable storage medium comprising a computer readable program for controlling a volume of incoming traffic into a network having a plurality of ingress routers, wherein the computer readable program when executed on a computer causes the computer to perform the steps of:

• monitoring respective loads of the plurality of ingress routers;
• selecting a particular one of the plurality of ingress routers to receive future incoming traffic based on at least the respective loads of the plurality of ingress routers;
• creating rewrite rules for an internal source IP address and a mapping between the internal source IP address and a client IP address, the internal source IP address relating to the particular one of the plurality of routers, the client IP address being for a client device accessing the Internet through the network;
• and
• rewriting a destination IP address of the incoming traffic based on the mapping.

A system for controlling a volume of incoming traffic into a network, comprising:

• a plurality of ingress routers for the network;
• and
• a controller for monitoring respective loads of the plurality of ingress routers, selecting a particular one of the plurality of ingress routers to receive future incoming traffic based on at least the respective loads of the plurality of ingress routers, and creating rewrite rules for an internal source IP address and a mapping between an internal source IP address and a client IP address, the selecting comprising controlling a path of reply traffic into the network by rewriting a source IP address of outgoing traffic,
• wherein the internal source IP address relates to the particular one of the plurality of routers, the client IP address is for a client device accessing the Internet through the network, and the particular one of the plurality of ingress routers rewrites a destination IP address of the incoming traffic based on the mapping.