Setting
Source Ports for a Successful Scan
¨Choose specific source ports to increase the chance that the packets will be admitted into the target network
¨Using source port of 25 or 80 together with an ACK scan will make the traffic look like responses to Web traffic or outgoing email
¨Using TCP source port 20 will look like incoming FTP data connection
¨Using UDP source port of 53 will look like DNS responses