[#CNetAddr-IsRFC6598]
= xref:CNetAddr.adoc[CNetAddr]::IsRFC6598
:relfileprefix: ../
:mrdocs:

Whether this is an IPv4 ISP&hyphen;level NAT (shared) address (100&period;64&period;0&period;0&sol;10)&period;

== Synopsis

Declared in `&lt;netaddress&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
IsRFC6598() const;
----

== Return Value

True when the address is in the IPv4 shared (ISP NAT) range&period;


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