Score:0

Ping: work in one direction only

hr flag

I have a Windows LAN (Domain). Also, 2 Ubuntu machines in the LAN: 22.04 and 20.04. I do ping IP 20.04->22.04 : it works fine When I do ping IP 22.04->20.04 : no responses.

What can be a reason?

mchid avatar
bo flag
Are you using the ip address or the hostname to ping? What are the firewall settings set to on both machines: `sudo ufw status verbose`?
ZedZip avatar
hr flag
Yes, I do ping by IP. On both machines >sudo ufw status verbose Status: inactive
ZedZip avatar
hr flag
I have made >ufw disable, >ufw enable and after it ping works ;-)
mchid avatar
bo flag
Awesome. You should post this as an answer below. You will be able to mark your answer as the accepted answer after a couple of days, just to give other people a chance to answer as well.
Score:1
ug flag

Check the routes, maybe there is a network device which not allow the ping.

ZedZip avatar
hr flag
Please more details. What commands to use?
mchid avatar
bo flag
@ZedZip Like in [this answer](https://askubuntu.com/a/1349703/167115) and also use `traceroute`.
Score:0
hr flag

I have checked:

$sudo ufw status verbose

status:inactive Then I did:

$sudo ufw disable
$sudo ufw enable

And finally ping works <-> in both directions and also from other windows machines.

I sit in a Tesla and translated this thread with Ai:

mangohost

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