Beginner Basics • Re: Unable to ping IPv6 address

Usually in germany the mobile operators have an ipv6 firewall.
Which iirc also applies for Vodafone.

Yes true, Vodafone blocks all incoming traffic on their firewall inside the mobile network!
That's the reason why i don´t receive an ICMP package or other TCP connections via LTE. There is also no option to change to another APN.
Ping from Internal LAN to the LAN Interface is fine.

1. I do hope you got more firewall rules than that. As Mikrotik clearly states ALLOW ALL is default.

Yes It's a Fallback-Line for the OPNsense Firewall

2. Where do you ping from? Mikrotik or Client on LAN? And where to? As your router obviously has multiple IPv6 Addresses.

From one of my Server located inside the Hetzner Datacenter and from some Online IPv6 Ping Tools

So the traffic is blocked incoming and i will change my Setup to a Wireguard Tunnel and route the traffic inside through that tunnel.
Thanks for your help!

Statistics: Posted by BeNe — Tue Mar 18, 2025 7:48 pm

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