[zeromq-dev] ZeroMQ and Amazon's EC2 environment

Eric Hill eric at ijack.net
Wed Mar 27 20:32:56 CET 2013

We're using it without issue.  For EC2 to EC2 communication, you need to
add the 10.x address of the instance initiating the connection to the
security group of the listening instance.  EC2 to EC2 communications happen
in-network on their 10.x subnet rather than to the public IP assigned to
the instance.

You can get around that by bringing the instances up in a VPC container,
which I would strongly recommend.

On Wed, Mar 27, 2013 at 2:30 PM, Nishant Mittal <nmittal at rblt.com> wrote:

> Just checking if anyone is using ZeroMQ on amazon's EC2 cloud. we did a
> little test between two instances but no msgs were received. I know that
> EC2 doesn't support multicast.. is this an issue?
> thanks
> Nishant
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