Hi,
I'm afraid this is a classic question but I can't find my way through and maybe someone may help to solve the issue.
I try to create a first tunnel and get the message:
IP is not ICMP pingable. Please make sure ICMP is not blocked. If you are blocking ICMP, please allow 66.220.2.74 through your firewall.
My setup:
Linksys router with DD-WRT.
In the router firewall, the option "Block anonymous Wan requests (ping) is not checked. And to be absolutely sure, I also tried with no firewall at all.
I used alternatively Ubuntu (no firewall on it) or OS X (firewall temporarily deactivated) as an OS, using NAT (client machine is 192.168.2.4)
If I try to ping my public IP from another place on the internet, I get no answer. 95.182.244.x
I tried to make a packet capture targeting Protocol 41 when using the HE form to create the tunnel. But I did it on the client, not on the router. No reaction. But I can't tell if it's because the ISP does not allow it or router doesn't "forward" it to the client machine.
Is there some test I'm not doing right or other tests I should attempt?
many thanks, in advance!
Al
If you're unable to ping your public IP address, that's your problem.
If you have a firewall after your modem/router, look there. You can contact your ISP and see if they block ICMP, if they don't, it's in DDWRT somewhere.
Quote from: cholzhauer on July 04, 2019, 07:16:05 PM
If you're unable to ping your public IP address, that's your problem.
Thanks for your answer.
The issue is solved for me now.
What I had to do: change cable modem configuration from router to bridge.
Then the wan interface of my DD-WRT got the public IP (and was pingable from the outside).
So the conditions to create the tunnel were met and it is indeed created now.
Next step: add the correct configuration to the clients to be able to visit something like ipv6.google.com for testing purpose.
Thanks again!
Al