SetDNSServerSearchOrder returns 70, Information from the MSDN is "invalid IP Address" for SetDNSServerSearchOrder
When I try with the IPv4 address it succeeds to add the DNS server. But when I try to give the IPv6 address instead of IPv4 address it doesn't work.
- Why it is not able to set the IPv6 address?
 - What is the alternative for achiving this in IPv6 machine?
 
Below is the code snippet what I tried. Also tried giving IPAddress and string datatypes as the input to SetDNSServerSearchOrder.
PS C:\Users\Administrator> $NICs = Get-WmiObject Win32_NetworkAdapterConfiguration | Where {$_.IPEnabled -eq "TRUE" -and
 ($_.IPAddress -contains "1111:1111:1111:1111:1111:1111:1111:1114")}
PS C:\Users\Administrator> [System.Net.IPAddress]$IP="1111:1111:1111:1111:1111:1111:1111:1112"
PS C:\Users\Administrator> $IP
Address           :
AddressFamily     : InterNetworkV6
ScopeId           : 0
IsIPv6Multicast   : False
IsIPv6LinkLocal   : False
IsIPv6SiteLocal   : False
IPAddressToString : 1111:1111:1111:1111:1111:1111:1111:1112
PS C:\Users\Administrator> $NICs.SetDNSServerSearchOrder($IP)
__GENUS          : 2
__CLASS          : __PARAMETERS
__SUPERCLASS     :
__DYNASTY        : __PARAMETERS
__RELPATH        :
__PROPERTY_COUNT : 1
__DERIVATION     : {}
__SERVER         :
__NAMESPACE      :
__PATH           :
ReturnValue      : 70
PS C:\Users\Administrator> [string]$IP="1111:1111:1111:1111:1111:1111:1111:1112"
PS C:\Users\Administrator> $NICs.SetDNSServerSearchOrder($IP)
__GENUS          : 2
__CLASS          : __PARAMETERS
__SUPERCLASS     :
__DYNASTY        : __PARAMETERS
__RELPATH        :
__PROPERTY_COUNT : 1
__DERIVATION     : {}
__SERVER         :
__NAMESPACE      :
__PATH           :
ReturnValue      : 70
PS C:\Users\Administrator> $IP
1111:1111:1111:1111:1111:1111:1111:1112
PS C:\Users\Administrator> $NICs
DHCPEnabled      : True
IPAddress        : {fe80::24b7:d14e:fd15:bd2b, 1111:1111:1111:1111:1111:1111:1111:1114}
DefaultIPGateway :
DNSDomain        :
ServiceName      : e1cexpress
Description      : Intel(R) 82579LM Gigabit Network Connection
Index            : 10
PS C:\Users\Administrator>
Below is the screenshot after running these commands.

Also searched in Google and can't find a solution. :-(
OS version: windows server 2008 r2
Powershell version: Powershell 2.0
Solution shall be unique so that I can use for both IPv4 and IPv6 systems.
It would be great if anyone can help in this regard.