ArpON is a portable handler daemon that make ARP protocol secure in order to avoid the Man In The Middle attack through ARP Spoofing, ARP Cache Poisoning or ARP Poison Routing (APR) attacks. It blocks also the derived attacks by it, which Sniffing, Hijacking, Injection, Filtering & co attacks for more complex derived attacks, as: DNS Spoofing, WEB Spoofing, Session Hijacking and SSL/TLS Hijacking & co attacks.
sudo apt-get install arpon
Arpwatch monitors Address Resolution Protocol traffic on a computer network. It generates a log of observed pairing of IP addresses with MAC addresses along with a timestamp when the pairing appeared on the network. It also has the option of sending an email to an administrator when a pairing changes or is added.
sudo apt-get install arpwatch
ARPWatch alerts you if it detects any danger and ArpON alerts you but also blocks the attack.