Ipv6 loopback disable

[JonathanLee]

Hello fellow Netgate community members,

I am looking for a way to disable the ipv6 loopback and only use the ipv4. I am seeing to much activity on the ipv6 loopback and the firewall has ipv6 blocked. Is there a way to force ipv4 loopback use only? Does anyone have a solution? Or can anyone explain why squid is not bound to the ipv6 loopback like it does with ipv4?

[JonathanLee]

@jonathanlee I was able to stop the ipv6 states after disable again and a any any block. I was confused why so many udp ipv6 states were running looped to the ipv6 loopback. After this it defaulted to ipv4 for dns and it's running fine. No ::1 states are running. A plus side I have more memory available, enough to enable Talos on snort.