[#CNetAddr-IsRFC1918]
= xref:CNetAddr.adoc[CNetAddr]::IsRFC1918
:relfileprefix: ../
:mrdocs:

Whether this is an IPv4 private‐network address (10/8, 192.168/16, 172.16/12).

== Synopsis

Declared in `<netaddress.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
IsRFC1918() const;
----

== Return Value

True when the address is in an IPv4 private‐network range.


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