riporto anche il test con http://www.letmecheck.it/mtu-test.php che dice MTU 1488
Sending 32 bytes to 84.220.120.18 <- not fragmented
Sending 750 bytes to 84.220.120.18 <- not fragmented
Sending 1125 bytes to 84.220.120.18 <- not fragmented
Sending 1313 bytes to 84.220.120.18 <- not fragmented
Sending 1407 bytes to 84.220.120.18 <- not fragmented
Sending 1454 bytes to 84.220.120.18 <- not fragmented
Sending 1478 bytes to 84.220.120.18 <- FRAGMENTED!
Sending 1466 bytes to 84.220.120.18 <- FRAGMENTED!
Sending 1460 bytes to 84.220.120.18 <- not fragmented
Sending 1463 bytes to 84.220.120.18 <- FRAGMENTED!
Sending 1461 bytes to 84.220.120.18 <- FRAGMENTED!
Sending 1460 bytes to 84.220.120.18 <- not fragmented
From the tests we did, we can assume that 1460 bytes is the largest unfragmented packet
size. The MTU size would be 1488, made up from 1460 payload and 28 ICMP/IP Headers
and payload information.
The current maximum payload size is not divisible by 8.
The actual size of the payload (data) will be limited to: 1456
The maximum MTU size for x.x.x.x is: 1488