arp_hosts

config_arp_hosts(){
    echo "graph_title ARP hosts
graph_args --base 1000 -l 0
graph_vlabel hosts
graph_scale no
graph_category network"

    for IFACE in $( ifconfig | grep -B 1 "inet addr" | grep Link | grep -v "^lo" | cut -d " " -f 1 )
    do
        echo "$IFACE.label $IFACE"
        echo "$IFACE.warning 10"
        echo "$IFACE.critical 11"
    done
    echo "any.label All interfaces"
    echo "any.warning 20"
    echo "any.critical 22"
    echo "graph_info Visible hosts on each interface"
}
fetch_arp_hosts(){
    for IFACE in $( ifconfig | grep -B 1 "inet addr" | grep Link | grep -v "^lo" | cut -d " " -f 1 )
    do
        echo "$IFACE.value" $( cat /proc/net/arp | grep "$IFACE" | wc -l )
    done
    echo "any.value $( cat /proc/net/arp | grep "^[0-9]" | wc -l )"
}