ARP

create new command define command { command_name duplicat_IP command_line $USER1$/dup_IP.sh } create new service define service { service_description duplicate_IP host_name host_name use generic-service check_command duplicat_IP…

The script checks the occupancy of IP addresses in the local network. With the IP address as a parameter to get the MAC address.

Check number of MAC-addresses in memory of a network device. This is usefull i.e. on a checkpoint firewall, where default more then 1024 MAC-addresses will…

Simple arping wrapper for those who doesn't answer to ping. Needs python2 and arping from iproute2 suite.

This will check for duplicate MAC entries in your ARP table on your nagios/linux box. If it finds any, it MAY mean your being attacked…