How can I make outbound requests from two servers that appear to come from the same IP address

Posted by Brad on Server Fault See other posts from Server Fault or by Brad
Published on 2012-09-04T18:11:27Z Indexed on 2012/09/04 21:40 UTC
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ip

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amazon-web-services

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ip-routing

I am making calls from an ec2 instance to a third party web service (over which I have no control). I would like to be able to scale horizontally, so that I can make these calls from multiple ec2 instances, but the web service I'm calling whitelists my IP, and for the sake of discussion let's assume I can't get another IP address whitelisted.

How can I send requests from 2+ machines that appear to the web service to be from the same IP address? Thanks!

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