On 2016-05-17 20:39, George Michaelson wrote:
UDP frags from the server response happen when the interface MTU drives below the size of the response packet in UDP.
But isn't this true for every networking device along the path? If the MTU is too low, the packet get fragmented (v4) or discarded (v6)?
Firewalls block UDP frags.
And home routers / nats.
Oh, I should add: TCP/UDP offload onto cards plays in the space too, as does the kernel (duh) so understanding that the platform uses smart cards, and if its BSD or Linux (because they tune Ip differently) matters too.
Smart cards for me is something else, but I may have DNSSEC tattooed on my forehead next time you see me ;-) How does offloading onto hardware play a role? -- Robert Martin-Legene Internet Infrastructure Specialist Packet Clearing House