IP is not ICMP pingable.

[TrickyZerg]

To whomever may assist on this one.

As I have read most of the already covered "IP is not ICMP pingable" topics, I still was not able to find one which worked for me to, I decided to open one for myself - apologies, if none was needed.

I'm trying to set up the IPV6 tunnel through "https://tunnelbroker.net/new_tunnel.php" and I'm getting, the well-know message below:

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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.

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I'm on a MAC, I have my firewall options set properly, as my "stealth mode" is disabled. I'm using a TP-LINK Archer C50 as a router and did not find anything about ICMP being blocked, I have also set up a rule within my router specifically to allow inbound request from 66.220.2.74.
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Thank you for the time in advance, would really appreciate if you can assist me on this one.

Let me know if further information is required.

Regards,

[tjeske]

Won't work. The Archer doesn't forward protocol 41 (not port 41!!!) so even if you manage to unblock ICMP, you won't be able to setup a tunnel. And TP-Link routers also don't support 6in4 tunnels. Get a different router (Fritz!Box or ASUS) or something with OpenWrt or Linux or Windows in front of your Archer.

[Zane Reick]

It would be a good idea to just get a raspberry pi 4 and run pfSense on it, or really get any old system and run pfSense on it.