Port forwarding with VZVmnetNetworkDeviceAttachment

I have the following code for port forwarding in mac os virtualization

        var ipAddr = in_addr()
        
        // 1. Convert String to in_addr
        inet_pton(AF_INET, guestIP, &ipAddr)
        
        let status = vmnet_network_configuration_add_port_forwarding_rule(
            config,
            UInt8(IPPROTO_TCP),                        // TCP protocol
            sa_family_t(AF_INET),     // address family
            guestPort,                // internal port (guest)
            externalPort,             // external port (host)
            &ipAddr                   // internal address (guest IP)
        )
        
        if status == .VMNET_SUCCESS {
            print("✅ Port Forwarding set: Mac:\(externalPort) -> VM(\(guestIP)):\(guestPort)")
        } else {
            print("❌ Port Forwarding failed for \(guestIP): \(status.rawValue)")
        }

It is returning success but when i test it it does not work. Is there anything i am doing wrong? Please help me also in fixing this problem. Note: The app runs in sandbox i tried without sandboxing and it does not work either. Please refer to this link https://developer.apple.com/forums/thread/822025?login=true&page=1#884236022 how i am creating the VZVmnetNetworkDeviceAttachment