例示できるIPアドレスについて

前回ご紹介した、例示できるドメインに続きまして、例示できるIPアドレスをご紹介します。

下記3つのIPアドレスが使用可能です。

 192.0.2.0/24
 198.51.100.0/24
 203.0.113.0/24

試しにwhoisで確認しますと、下記のような記載があります。

NetRange:       192.0.2.0 - 192.0.2.255
CIDR:           192.0.2.0/24
NetName:        TEST-NET-1
NetHandle:      NET-192-0-2-0-1
Parent:         NET192 (NET-192-0-0-0-0)
NetType:        IANA Special Use
OriginAS:
Organization:   Internet Assigned Numbers Authority (IANA)
RegDate:        2009-06-29
Updated:        2013-08-30
Comment:

Addresses starting with "192.0.2.", "198.51.100.", or "203.0.113." are reserved for use in documentation and sample configurations.  They should never be used in a live network configuration.  No one has permission to use these addresses on the Internet.
Network operators should add these address blocks to the list of non-routable address space, and if packet filters are deployed, then these address blocks should be added to packet filters.  These blocks are not for local use, and the filters may be used in both local and public contexts.
These addresses are assigned by the IETF, the organization that develops Internet protocols, in the Informational document RFC 5737, which can be found at: http://datatracker.ietf.org/doc/rfc5737

Ref:            https://whois.arin.net/rest/net/NET-192-0-2-0-1

もちろん、プライベートアドレスは自由に使うことができます。

 10.0.0.0/8
 172.16.0.0/12
 192.168.0.0/16

マニュアルや手順書など、ドキュメントにIPアドレスを記載する必要がある場合にご参考になれば幸いです。