In message snipped-for-privacy@mid.individual.net>, Andy Burns snipped-for-privacy@andyburns.uk writes
Having just run that test, I am told 'From the tests we did, we can assume that 1472 bytes is the largest unfragmented packet size. The MTU size would be 1500, made up from 1472 payload and 28 ICMP/IP Headers and payload information', but have no idea whether that is good, bad or otherwise.
"From the tests we did, we can assume that 1472 bytes is the largest unfragmented packet size. The MTU size would be 1500, made up from 1472 payload and 28 ICMP/IP Headers and payload information."
But then I know I have 1508 byte baby jumbo packets on my PPPoE interface, hence full-fat 1500 byte "inner" packets.
Curious. On VM (with Firefox in Win 10) for an IPv4 test I get
"Sending 32 bytes to 82.5.46.142 <- not fragmented
Sending 750 bytes to 82.5.46.142 <- not fragmented
Sending 1125 bytes to 82.5.46.142 <- not fragmented
Sending 1313 bytes to 82.5.46.142 <- not fragmented
Sending 1407 bytes to 82.5.46.142 <- not fragmented
Sending 1454 bytes to 82.5.46.142 <- not fragmented
Sending 1478 bytes to 82.5.46.142 <- FRAGMENTED!
Sending 1466 bytes to 82.5.46.142 <- not fragmented
Sending 1472 bytes to 82.5.46.142 <- not fragmented
Sending 1475 bytes to 82.5.46.142 <- FRAGMENTED!
Sending 1473 bytes to 82.5.46.142 <- FRAGMENTED!
Sending 1472 bytes to 82.5.46.142 <- not fragmented
From the tests we did, we can assume that 1472 bytes is the largest unfragmented packet size. The MTU size would be 1500, made up from 1472 payload and 28 ICMP/IP Headers and payload information.
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