[ros-users] nodes working on 2 computers

Morgan Cormier MCormier at coroware.com
Fri Apr 8 15:29:55 UTC 2011

Thank you for your help,

As you suggested, here is my post on answer.ros.org<http://answer.ros.org> :


On Apr 7, 2011, at 7:20 PM, Adam Leeper wrote:

This is probably more of a answers.ros.org<http://answers.ros.org/> question, but I think you also need to tell computer A how to refer to itself,
e.g.   export ROS_HOSTNAME= on computer A.



Adam Leeper
Stanford University
aleeper at stanford.edu<mailto:aleeper at stanford.edu>

On Thu, Apr 7, 2011 at 5:12 PM, Morgan Cormier <MCormier at coroware.com<mailto:MCormier at coroware.com>> wrote:
Hi, I am trying to make a node on one computer(computer A) with some publishers and some services and try to read the messages and call some services with another computer(computer B).

computer A(ip is and computer B(ip is are connected since they can ping each other

computer A also runs a roscore since it is the master

on computer A, I set the ROS_MASTER_URI at http://localhost:11311<http://localhost:11311/>
on computer B, I set the ROS_MASTER_URI at<> and the ROS_HOSTNAME at

and yet it doesn't work, I don't even receive the topics messages,

I am sure I am doing something wrong or maybe didn't configure my network properly.

Does someone happen to know how to solve the problem?

Thank you so much for your help.
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