https://datatracker.ietf.org/doc/html/rfc1918
RFC 1918 定義了網路私用的保留 IP, 也就是我們常說的 Illegal IPs
共有三段:
- 10.0.0.0 - 10.255.255.255 (10/8 prefix)
- 172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
- 192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
Wikipedia 上也有相關資訊可參考:
https://en.wikipedia.org/wiki/Reserved_IP_addresses