ip_deny_list

ip_deny_list drops datagrams from the listed IP addresses or CIDR ranges. It is the opposite of ip_allow_list.

server:
  udp:
    middlewares:
      block_bad:
        ip_deny_list:
          source_range:
            - 203.0.113.0/24

Field	Default	Description
source_range		Denied IPs or CIDRs. Required.