puppet nftables

#

# @summary allow incoming Link-Local Multicast Name Resolution

#

# @param ipv4 Allow LLMNR over IPv4

# @param ipv6 Allow LLMNR over IPv6

#

# @see https://datatracker.ietf.org/doc/html/rfc4795

#

class nftables::rules::llmnr (

  Boolean $ipv4 = true,

  Boolean $ipv6 = true,

) {

  if $ipv4 {

    nftables::rule { 'default_in-llmnr_v4':

      content => 'ip daddr 224.0.0.252 udp dport 5355 accept comment "allow LLMNR"',

    }

  }

  if $ipv6 {

    nftables::rule { 'default_in-llmnr_v6':

      content => 'ip6 daddr ff02::1:3 udp dport 5355 accept comment "allow LLMNR"',

    }

  }

}