You want to carry out session hijacking on a remote server.

You want to carry out session hijacking on a remote server. The server and the client are communicating via TCP after a successful TCP three way handshake. The server has just received packet #120 from the client. The client has a receive window of 200 and the server has a receive window of 250.

Within what range of sequence numbers should a packet, sent by the client fall in order to be accepted by the server?