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2022-09-12 10:53:57 -0500 edited answer data is not seen from the robot when published from the workstation.

We have solved the problem. This is because of the firewall. Even though we have disabled the firewall using sudo ufw di

2022-09-12 10:45:52 -0500 commented answer data is not seen from the robot when published from the workstation.

ok, Thanks. got your point.

2022-09-12 10:24:23 -0500 received badge  Popular Question (source)
2022-09-12 05:45:39 -0500 marked best answer data is not seen from the robot when published from the workstation.

I have followed this tutorial from this link https://www.youtube.com/watch?v=YMG6D... for setting up and troubleshooting the ros networks. I have modified it precisely the same way as it is provided in the video. But when sending the rostopic data from the laptop to the robot, the robot cannot receive the data, but the rostopic list will shows the topic name. I have tried disabling the firewall too, but this has no effect. What could be the possible solution to this?

OS in robot: ubiquityrobot images: ubuntu 16.04. OS in laptop: ubuntu 16.04. ROS distro : kinetic

PS: 1. I have tried using roswtf, and I have understood that two nodes are unable to establish a connection. But don't know what is blocking the rosnode to publish the data when running from the workstation. 2. However topic publisher data from robot is received from the workstation. 3. HOSTNAME and IP are set as described in the youtube link mentioned above.

Edit 1:

  1. workstation configuration

.bashrc - > last lines

export ROS_MASTER_URI=http://ubiquityrobot.local:11311
ROS_HOSTNAME=$(hostname).local
#ROS_IP=0.0.0.0

/etc/hosts -> file

127.0.0.1   localhost
127.0.1.1   maisa-K53E    
10.42.0.1   ubiquityrobot.local
# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
  1. robot side

.bashrc -> last line

ROS_IP=0.0.0.0

/etc/hosts -> lines

127.0.0.1  localhost
10.42.0.201  maisa-K53E

::1        localhost ip6-localhost ip6-loopback
ff02::1    ip6-allnodes
ff02::2    ip6-allrouters

127.0.1.1    ubiquityrobot ubiquityrobot.local

roswtf output: https://drive.google.com/file/d/1aSdPzWWtV0FwyZBTCkgjQu1knXXOJFIm/view?usp=sharing

.

Edit 2: When publishing data on a topic from robot, we can see the topic as well as the data sent from the robot in the workstation but not vice-versa.

2022-09-12 05:45:39 -0500 received badge  Scholar (source)
2022-09-12 00:15:17 -0500 answered a question data is not seen from the robot when published from the workstation.

We have solved the problem. This is because of the firewall. Even though we have disabled the firewall using sudo ufw di

2022-09-09 09:47:01 -0500 edited question data is not seen from the robot when published from the workstation.

data is not seen from the robot when published from the workstation. I have followed this tutorial from this link https:

2022-09-09 02:44:29 -0500 commented question data is not seen from the robot when published from the workstation.

combining ROS_IP and /etc/hosts together are not working for me. I have followed exactly in ros tutorials too. But still

2022-09-09 02:35:27 -0500 commented question data is not seen from the robot when published from the workstation.

combining ROS_IP and /etc/hosts together is not working for me. I have followed exactly in ros tutorials too. But still

2022-09-09 02:35:27 -0500 received badge  Enthusiast
2022-09-08 21:49:00 -0500 commented question data is not seen from the robot when published from the workstation.

I am actually using the hosts' file.

2022-09-08 21:44:39 -0500 commented question data is not seen from the robot when published from the workstation.

I will share the configuration that I am using on my laptop and robot, to make it clear. I have updated the question

2022-09-08 21:42:37 -0500 commented question data is not seen from the robot when published from the workstation.

I will share the configuration that I am using for configuration, to make it clear. I have updated the question

2022-09-08 21:42:22 -0500 commented question data is not seen from the robot when published from the workstation.

I will share the configuration that I am using for configuration, to make it clear.

2022-09-08 21:42:16 -0500 edited question data is not seen from the robot when published from the workstation.

data is not seen from the robot when published from the workstation. I have followed this tutorial from this link https:

2022-09-07 15:00:05 -0500 received badge  Organizer (source)
2022-09-07 14:58:59 -0500 edited question data is not seen from the robot when published from the workstation.

data is not seen from the robot when published from the workstation. Hi, I have followed this tutorial from this link ht

2022-09-07 14:58:52 -0500 edited question data is not seen from the robot when published from the workstation.

data is not seen from the robot when published from the workstation? Hi, I have followed this tutorial from this link ht

2022-09-07 14:58:29 -0500 edited question data is not seen from the robot when published from the workstation.

data is not seen from the robot when published from the workstation? Hi, I have followed this tutorial from this link ht

2022-09-07 14:42:26 -0500 edited question data is not seen from the robot when published from the workstation.

data is not seen from the robot when published from the workstation? Hi, I have followed this tutorial from this link ht

2022-09-07 14:42:26 -0500 received badge  Editor (source)
2022-09-07 14:38:58 -0500 asked a question data is not seen from the robot when published from the workstation.

data is not seen from the robot when published from the workstation? Hi, I have followed your tutorial from this link ht

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2021-06-01 02:18:19 -0500 edited answer configuration for launching gazebo world and model from a package

Hello, I am also having the same problem. So this kind of question is already answered. check here The directory of your

2021-06-01 01:58:03 -0500 answered a question configuration for launching gazebo world and model from a package

Hello, I am also having the same problem. So this kind of question is already answered. check here The directory of your

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2020-10-12 02:41:51 -0500 commented question roscd <my-package> showing type errors in windows os

Ok, Thank you

2020-10-12 01:16:13 -0500 asked a question roscd <my-package> showing type errors in windows os

roscd <my-package> showing type errors in windows os Hello, I have just installed ROS Noetic Ninjemys on windows.

2020-10-12 01:16:12 -0500 commented answer How to get points for uploading pictures to show problem better?

thank you for providing the information