IsIPv6

Description

Determines whether the host supports IPv6.

Returns

True if the host supports IPv6.

Category

Decision functions

Syntax

IsIPv6() 
IsIPv6(hostname)

See also

GetLocalHostIP, IsLocalHost

History

ColdFusion 9: Added this function

Usage

When you use this function to verify if the remote host supports IPv6, pass the hostname and not the IP address.

This function applies only if the server that places the request is IPv6-enabled.

Example

The following example checks whether the localhost supports IPv6:

<cfset hostname="localhost"> 
<cfset test=IsIPv6()> 
<cfif test> 
<cfoutput>localhost supports IPv6</cfoutput> 
</cfif>

The following example checks whether the remote host supports IPv6:

<cfset hostname="remote hostname"> 
<cfset test=IsIPv6(hostname)> 
<cfif test> 
<cfoutput>#hostname# supports IPv6</cfoutput> 
</cfif>