IPv4 entries with /32 in de.zone

[RF3]

Today I downloaded the zone data for Germany from here: https://raw.githubusercontent.com/ipverse/rir-ip/master/country/de/ipv4-aggregated.txt

To my surprise, I found 73 entries ending on /32 which would only match a single address. For example:

134.98.184.0/32

But when I look at the raw data of RIPE NCC, the line looks like this:

ripencc|DE|ipv4|134.98.184.0|18432|20000724|assigned|990abedc-85ee-4e31-9905-2d6e24353cc3

As you can see, the netmask(s) should cover 18432 addresses (134.98.184.0 - 134.98.255.255) and not just a single one. So there should be two lines instead:

134.98.184.0/21 (134.98.184.0 - 134.98.191.255)
134.98.192.0/18 (134.98.192.0 - 134.98.255.255)

[RF3]

Here is a little awk script that I just wrote to convert the RIPE raw data into the correct x.x.x.x/y format:

BEGIN {
  FS="|"
}

function IP2Value(ip,   array)
{
  split(ip, array, /\./)
  return lshift(array[1], 24) + lshift(array[2], 16) + lshift(array[3], 8) + array[4]
}

function Value2IP(value)
{
  return rshift(value, 24) "." and(rshift(value, 16), 255) "." and(rshift(value, 8), 255) "." and(value, 255)
}

# filter for DE zone and IPv4 entries:
$2 == "DE" && $3 == "ipv4" {
  value = IP2Value($4)
  count = $5

  for (i = 2; (i <= 30) && (count > 0); i++)
  {
    mask = 2 ^ i
    if (and(count, mask))
    {
      printf("%s/%d\n", Value2IP(value), (32 - i))
      value += mask
      count -= mask
    }
  }
}

Save it to a file like convert-ripe.awk and use it like this with the downloaded raw data:

awk -f convert-ripe.awk < delegated-ripencc-extended-latest.txt

[trick77]

Thanks for the heads-up!

[trick77]

This should be fixed now. Thanks again for pointing this out, this was a major f*** up.