====== 解決 mount.cifs - mount error 112: host isdown ======

To overcome this use mount or smbclient with a protocol specified.

for sbmclient: add -m SMB2 (or SMB3 for the newer version of the protocol)

  smbclient -L <server_ip> -U <username> -m SMB2
  
or for mount: add vers=2.0 (or vers=3.0 if you want to use version 3 of the protocol)

  mount -t cifs //<server_ip>/<share> /mnt/<mountpoint> -o vers=2.0

最終以我的case:

  mount -t cifs -o vers=1.0,username=<user>,password=<pwd> //192.168.x.x/sfard <local mountpoint>