The traffic I want to block can be sniffed as below with tcpdump:
19:16:22.391164 IP 18.104.22.168.2036 > 10.10.10.10.443: UDP, length 8192
So I wanted to write a rule block any udp destination port 443 traffic.
block drop quick on igb3 inet proto udp to any port 443
Traffic does not match and does not blocked.
However, It matches and blocks if I write rule as below:
block drop quick on igb3 inet proto udp to 10.10.10.10
Do you have any remarks?
I am using pf in Freebsd.