I have a 1Gbe and a 10Gbe card in 2 computers connected with each. I can SMB on the win 10 box to ubuntu 18.04 on the 1Gb, but not the 10Gb. Iperf3 says 300 MB/s on the 10G link and I get ~300 MB/s on the ISCSI on that link. Not great speed, but let’s get samba talking first, then optimize the link.
I recently had to re-install ubuntu and I’m using the same conf file that was working previously. In samba conf, one of these lines work and the other does not.
interfaces = lo enp5s0
interfaces = lo enp5s0 enp4s0
enp5s0 is the 10G and enp4s0 is the 1G. As far as I can tell, win-10 says the network is “private” and has all the settings of the 1G network. ISCSI has no trouble with the 10G, nor does ssh or winscp or iperf.
The 1G is dhcp with a static lease for ubuntu and just dhcp for win-10. The 10G is static for both hosts on another range like this 1G=192.168.7.0/24 and 10G=192.168.12.0/24 At this moment, the statics have no default gateway and no dns server set, but the dhcp has both fields set correctly.
Any ideas or diagnostic tools/tips are greatly appreciated. I’m at wit’s end over here.