These parameters are used to limit how many ICMP destination unreachable to
send from the host in question. ICMP destination unreachable messages are
-sent when we can not reach the next hop, while trying to transmit a packet.
+sent when we cannot reach the next hop while trying to transmit a packet.
It will also print some error messages to kernel logs if someone is ignoring
our ICMP redirects. The higher the error_cost factor is, the fewer
destination unreachable and error messages will be let through. Error_burst