Port Number Protocol Application FTP Data FTP Control SSH Telnet SMTP DNS HTTP POP3 SSL Message...

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Port Number Protocol Application FTP Data FTP Control SSH Telnet SMTP DNS HTTP POP3 SSL Message SYN Description SYN-ACK ACK 1. 2. 3. 4. 5. Connection-oriented Service Connection-less Service Access-list Statement access-list 101 deny tcp any any access-list 101 deny udp any any access-list 101 deny icmp any any access-list 101 deny ip host 1.1.1.1 host 2.2.2.2 access-list 101 deny udp 1.1.1.0 0.0.0.255 any What it matches? Spoofing Attack Denial-of-Service (DoS) Attack Reflection Attack Amplification Attack Man-in-the-Middle Attacks Reconnaissance Attacks Buffer Overflow Attacks Enable password Enable secret 1. 2. 3. 4. 5. 6. 123456 Port Number Protocol Application FTP Data FTP Control SSH Telnet SMTP DNS HTTP POP3 SSL Message SYN Description SYN-ACK ACK 1. 2. 3. 4. 5. Connection-oriented Service Connection-less Service Access-list Statement access-list 101 deny tcp any any access-list 101 deny udp any any access-list 101 deny icmp any any access-list 101 deny ip host 1.1.1.1 host 2.2.2.2 access-list 101 deny udp 1.1.1.0 0.0.0.255 any What it matches? Spoofing Attack Denial-of-Service (DoS) Attack Reflection Attack Amplification Attack Man-in-the-Middle Attacks Reconnaissance Attacks Buffer Overflow Attacks Enable password Enable secret 1. 2. 3. 4. 5. 6. 123456