Given these ufw rules :
ufw status verbose
2001:nnn:0:400b::12 DENY IN Anywhere (v6)
2001:nnn:0:400b::12 DENY OUT Anywhere (v6)
Why is this request out and response in allowed :
ping6 2001:nnn:0:400c::12
PING 2001:nnn:0:400c::12(2001:4e8:0:400c::12) 56 data bytes
64 bytes from 2001:nnn:0:400c::12: icmp_seq=1 ttl=60 time=15.9 ms
There must be some basic concept about firewall rules that I'm not getting. To my learner's mind, the request out should be denied. And even if that slips by, the response should be denied.
