On Sunday 19 January 2025 19:38:23 Steve French wrote: > >Windows SMB servers (including SMB2+) which are working over RFC1001 > >require that Netbios server name specified in RFC1001 Session Request > >packet is same as the UNC host name. Netbios server name can be already > >specified manually via -o servern= option. > >With this change the RFC1001 server name is set automatically by extracting > >the hostname from the mount source. > > > > Signed-off-by: Pali Rohár <pali@xxxxxxxxxx> > > Pali, > Is there a good way to simulate this with SMB2.1 or SMB3+ mount to Windows? > > -- > Thanks, > > Steve Sure, it is very easy. Just call standard mount with -o port=139 option. For example: mount //hostname/share /mnt/smb -t cifs -o vers=3.1.1,port=139 And you can watch network traffic in wireshark. Just to note that for SMB 3.1.1 it is currently broken and other patches in this series are fixing it: https://lore.kernel.org/linux-cifs/20241222163050.24359-1-pali@xxxxxxxxxx/t/#u Your mentioned change "cifs: Set default Netbios RFC1001 server name to hostname in UNC" is the last one in that patch series.
