> There are no SYNs to 2.2.2.2 in my traces. So something different > about network infrastructures where in your case for some reason you > are sending something to 2.2.2.2 and the only reason I can think of is > that you have something in the ARP cache and I don't. And Alex yes I > do have an ARP entry for my default gateway but no there is no SYN > sent to the server from a different subnet. Hi Olga, Thanks for working with us on this issue. I think we might have figured out the difference. 2.2.2.2 is inaccessible public internet address. Does your network have a route to the internet? That said, for the SYN to be sent the client's network needs to have a route to the server's network. So, perhaps you can try a test with an IP that you know your client network has a route for, but is down/unreachable. P.S. We do see that Trond put out a possible patch for the issue: https://marc.info/?l=linux-nfs&m=162326359818467&w=2
