Hasan Masum hmasum52

In ns-2, the reserved field in the TCP header can be accessed and modified using the C++ programming language. Here is an example of how you might use the reserved field in a simulation:

Include the necessary headers in your simulation script:

#include "tcp.h"
#include "ip.h"
Create a new class that inherits from the existing TCP class:
Copy code
class MyTCP : public TCP {
public:

	#include <SoftwareSerial.h>

	#define RXgsm 10
	#define TXgsm 11

	const uint32_t GSMBaud = 115200;
	SoftwareSerial gsmSerial(RXgsm, TXgsm);

	void sendMessage(String msg)
	{