Systems and methods for IP sharing across wide area networks

摘要

Computer connectivity is dependent on network availability. When networks are offline, relocating systems and data to an available network is an inefficient, time consuming, and error prone process. A system and method is disclosed for instant IP sharing and relocation between geographical locations by combining BGP announcement in one or multiple locations and applying stateless NAT to the IP traffic. Thereby, IP traffic is redirected to the desired location and delivered to the final device using the shared/relocated IP address. This system and method allows a single IP address to actively respond to network requests from numerous locations which can be spread around the globe.

主权项

1. A method for sharing an Internet Protocol (“IP”) address between geographically distant locations and redirecting IP traffic instantly to desired locations in a system, comprising:
advertising, from a distribution point, a route for the shared IP address to the Internet through an external routing protocol; performing, by the distribution point, a first stateless Network Address Translation (“NAT”) conversion of traffic having the shared IP address as a destination to a local network IP address within a datacenter where a device using the shared IP address is running; performing, upon arrival at the datacenter, a second stateless NAT conversion from the local network IP address to the shared IP address, restoring the traffic to its original form, and passing the traffic to a device processing requests using the shared IP address for the traffic, wherein the device processing the requests using the shared IP address responds directly to an originator of the traffic through a standard network, and the reply does not need to be modified or subject to any conversion; and coordinating mapping between the shared IP address and local networks to create stateless NAT rules in the distribution point and end points to redirect the traffic to the desired locations.