# To Quagga Rules:
#   cat filter6.txt | \
#       grep -e  ^[0-9] | \
#       awk '{ print "ipv prefix-list dn42v6-in seq " $1 " " $2 " " $3 " ge " $4 " le " $5}' | \
#       sed "s_/\([0-9]\+\) ge \1_/\1_g;s_/\([0-9]\+\) le \1_/\1_g"
#
# For BIRD Rules: (see also: utils/bgp-filter.rb)
#   cat filter6.txt | \
#       awk 'BEGIN {printf "function is_valid_network() {\n return net ~ [\n" } \
#            /^[0-9]/ && $2 ~ /permit/ {printf "     %s{%s,%s},\n", $3, $4, $5};' | \
#       sed "$ s/,$/\n  ];\n}/"

# Nr    Action    Prefix                      MinLen  MaxLen    # Comment
0010    deny      fc00::/8                     8      128       # ULA (undefined)
0011    permit    fd00::/8                    44       64       # ULA (defined)