GitHub user arpanbht added a comment to the discussion: Internet connectivity not working on some hosts
> Ok, this changes things a bit. Based on your description it could be an issue > with Ubuntu itself as CentOS works fine. Can you share below details > > 1. Have the Ubuntu VM running on both the hosts. Give IP of the Ubuntu VM on > each host and also the instance name for each Ubuntu VM > 2. Output of below commands from both the hosts > ip link show > brctl show #you may need to install bridge-utils for this > sysctl net.ipv4.conf.all.rp_filter > sysctl net.ipv4.conf.default.rp_filter > iptables -L -nv > iptables -t nat -L -n Hey @prashanthr2 , Here is your requested output of these above mentioned commands..... ### Here are the outputs of the 1st vm created on cloud-compute5 host which is getting network <img width="763" height="177" alt="Screenshot from 2026-01-09 10-48-47" src="https://github.com/user-attachments/assets/f309f824-743a-4197-9a82-dff600246f72"; /> <img width="763" height="88" alt="Screenshot from 2026-01-09 10-52-04" src="https://github.com/user-attachments/assets/bf89bc3a-a9e1-49d1-b58a-1e7e4aa6fa5f"; /> <img width="763" height="88" alt="Screenshot from 2026-01-09 10-54-11" src="https://github.com/user-attachments/assets/e5a59353-d59f-412c-8ef9-52a98c1aea6e"; /> <img width="763" height="258" alt="Screenshot from 2026-01-09 10-56-31" src="https://github.com/user-attachments/assets/0ca2ce37-9645-4917-9504-f34676e84710"; /> <img width="763" height="258" alt="Screenshot from 2026-01-09 10-57-26" src="https://github.com/user-attachments/assets/3ea87299-fde6-47f4-b9c0-296ae6f94895"; /> ### Here are the outputs of the 2nd vm created on cloud-compute7 host which is not getting network <img width="763" height="177" alt="Screenshot from 2026-01-09 10-49-37" src="https://github.com/user-attachments/assets/4dc0f771-4f03-46a7-9f04-c98e2ebfa20b"; /> <img width="763" height="88" alt="Screenshot from 2026-01-09 10-52-44" src="https://github.com/user-attachments/assets/7d7d5474-fae1-4251-ae8f-98f31b38f400"; /> <img width="763" height="88" alt="Screenshot from 2026-01-09 10-54-27" src="https://github.com/user-attachments/assets/5dd1dddd-6ff5-441c-970e-c7c3d93cffc1"; /> <img width="763" height="258" alt="Screenshot from 2026-01-09 10-56-42" src="https://github.com/user-attachments/assets/8e2ef97f-0dd6-4f9f-ba28-3a7b93bfb657"; /> <img width="763" height="258" alt="Screenshot from 2026-01-09 10-57-40" src="https://github.com/user-attachments/assets/a9493265-833a-463f-8c5a-91e2517873b7"; /> For the 1st vm the output of `brctl show` is blank , And for the 2nd vm I could not install bridge-utils as the network is not working. GitHub link: https://github.com/apache/cloudstack/discussions/12382#discussioncomment-15451379 ---- This is an automatically sent email for [email protected]. To unsubscribe, please send an email to: [email protected]
