Programmer 
Content
Me, a malicious IP packet trying to get into a private network: 0 4 8 16 31bit Version IHL Identification Flags TTL TOS Protocol Source address Desrinarion address Total length Fragment offset Header checksum 20 bytes Options Data 9-48 (bytes Up to 65515 bytes The Firewall, who can’t find my source IP in its access control list (ACL): LETMESTOP YOU RIGHT THERE