Replace IP addresses mentioned in the docs with a variable that includes an RFC 5737-compliant value

[ptgott]

Applies To

IP addresses mentioned throughout the docs

Details

See this comment for context: #21594 (comment)

Let's:

• Add a variable to config.json that includes an IP address described in RFC 5737 (https://www.rfc-editor.org/rfc/rfc5737.html), or perhaps multiple variables for IP addresses if needed
• Use this variable in the place of non-local IP addresses we mention in the docs

IPs provided for docs in RFC 5737:

The blocks 192.0.2.0/24 (TEST-NET-1), 198.51.100.0/24 (TEST-NET-2),
and 203.0.113.0/24 (TEST-NET-3) are provided for use in
documentation.

Related Issues

[ptgott]

IP addresses with five or more occurrences:

% grep -RhEo "[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+" docs/pages | sort | uniq -c | sort -n | awk '$1 >= 5{print $0}'
   5 10.98.6.171
   5 172.31.0.196
   6 172.31.2.109
  10 1.2.3.4
  15 192.168.1.206
  57 0.0.0.0
  95 127.0.0.1

Distinct IP addresses:

% grep -RhEo "[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+" docs/pages | sort | uniq | wc -l
      86