Displaying IP addresses with Windows Powershell

How many IP Addresses on a Windows 7 system?

Here are two different Powershell commands that produce a list of IPv4 and IPv6 addresses on the same Windows 7 workstation. One parses 'ipconfig' and validates five addresses through  '[System.Net.IPaddress]'. The other uses 'gwmi' and the format of the addresses it produces will not similarly validate. Aside from the formatting of the object produced, I cannot understand why they will not validate.  It appears here I am extracting IPv6 anycast and broadcast addresses with 'ipconfig' that 'gwmi' is not giving me.

$IPAddress_ipconfig=(ipconfig | Select-string Address) -split ": " | Select-string -notmatch ". ."
foreach ($IP in $IPAddress_ipconfig) {([System.Net.IPaddress]::Parse("$IP")).IPAddressToString}

fe80::6172:6ecf:2d05:b0ae%12
192.168.0.11
fe80::cddc:ceef:b717:a5ac%11
2001:0:4137:9e76:30c3:129:3f57:fff4
fe80::30c3:129:3f57:fff4%17

(Get-WmiObject Win32_NetworkAdapterConfiguration | ? {$_.IPAddress} | Select IPaddress | fc -expand CoreOnly | findstr [0-9])

fe80::cddc:ceef:b717:a5ac
192.168.0.11
fe80::6172:6ecf:2d05:b0ae