Configure the Management Network on the vSAN Witness Host

Configure the management network for the vSAN witness host in the ESXi Direct Console User Interface (DCUI).
  1. In the inventory panel of the vCenter Server Client, select
    vCenter Server
    Datacenter
    .
  2. Open the DCUI of the ESXi host.
    1. Right-click the vSAN witness host and click
      Open remote console
      .
    2. Press F2 to enter the DCUI.
    3. Log in with the
      vsan_witness_root_password
      .
  3. Configure the network.
    1. Select 
      Configure Management Network
       and press Enter.
    2. Select
      IPv4 Configuration
      and press Enter.
    3. Select
      Set static IPv4 address and network configuration
      and press the Space bar.
    4. Enter
      IPv4 Address
      ,
      Subnet Mask
      and
      Default Gateway
      and press Enter.
    5. Select 
      DNS Configuration
       and press Enter.
    6. Select
      Use the following DNS Server address and hostname
      and press the Space bar.
    7. Enter
      Primary DNS Server
      ,
      Alternate DNS Server
      and
      Hostname
      and press Enter.
    8. Select
      Custom DNS Suffixes
      and press Enter.
    9. Ensure that there are no suffixes listed and press Enter.
  4. Press Escape to exit and press Y to confirm the changes.