Verificare i settaggi del server :
# cat /proc/sys/net/ipv4/neigh/default/gc_thresh1
128
# cat /proc/sys/net/ipv4/neigh/default/gc_thresh2
512
# cat /proc/sys/net/ipv4/neigh/default/gc_thresh3
1024
Editare il file /etc/sysctl.conf :
net.ipv4.neigh.default.gc_thresh1 = 512
net.ipv4.neigh.default.gc_thresh2 = 1024
net.ipv4.neigh.default.gc_thresh3 = 2048
Confermare la configurazione eseguendo il comando :
sysctl -p