New-NetIPAddress `
-InterfaceAlias "Ethernet0" `
-AddressFamily IPv6 `
-IPAddress 2001:db8:1::100 `
-PrefixLength 64 `
-DefaultGateway 2001:db8:1::254

Set-DnsClientServerAddress `
-InterfaceAlias "ethernet0" `
-ServerAddresses 2001:db8:1::200

Set-NetIPInterface `
-InterfaceAlias "Ethernet0" `
-AddressFamily IPv6 `
-Advertising Enabled