The site is read-only. Please transition to use Robotics Stack Exchange
| ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
 | 1 | initial version |
On PC side the following settings are made [..],
ROS_HOSTNAME=android_ip[..]
this makes no sense to me. Why did you set ROS_HOSTNAME to the IP of the android device?
| | 2 | No.2 Revision |
On PC side the following settings are made [..],
ROS_HOSTNAME=android_ip[..]
this makes no sense to me. Why did you set ROS_HOSTNAME to the IP of the android device?
Edit:
The ROS master is running on the android phone thus I set HOSTNAME to
android_ip. Is that wrong?
yes, that is not correct. ROS_IP ~= ROS_HOSTNAME: both store information about the local machine, not something remote. Only ROS_MASTER_URI ever points to a remote IP / host.
Please note that only one of them is needed. If you set ROS_IP, you don't need ROS_HOSTNAME and the other way around.
Or to be more precise: don't fill in the same information in the two. ROS_HOSTNAME should be set to hostnames, and things will only work if you've got a working DNS for all involved hosts (note: both forward and reverse lookups need to work).
If you set ROS_IP, set it to an IP, not a hostname. If you do this, you don't need DNS, but it's obviously less flexible in the face of (frequent) IP changes of the involved hosts (such as with an 'overactive' DHCP server).
ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
