// Add a judgement here to support previous versions of IPv6_DEVICE_PATH.\r
// In previous versions of IPv6_DEVICE_PATH, IpAddressOrigin, PrefixLength\r
// and GatewayIpAddress do not exist.\r
// Add a judgement here to support previous versions of IPv6_DEVICE_PATH.\r
// In previous versions of IPv6_DEVICE_PATH, IpAddressOrigin, PrefixLength\r
// and GatewayIpAddress do not exist.\r