Background and result

In CML (Cisco Modeling Labs), when accessing each node in the lab from the outside via SSH, etc., a node called the External Connector is deployed and connected to the management interface of each node.

This procedure is shown in the user guide.
https://developer.cisco.com/docs/modeling-labs/#!bridge-mode

In my ESXi environment, the following work was required as a preliminary step.

• Accept promiscuous mode in ESXi https://developer.cisco.com/docs/modeling-labs/#deploying-the-ova-on-esxi-server

In addition, the following task was also required for CML 2.4.0.

• Edit the bridge interface in CML https://developer.cisco.com/docs/modeling-labs/#!configuring-the-management-ip-address

What I did

Accept promiscuous mode

• Check settings of port groups assigned to VMs in CML
• If it is inherited from a vSwitch, check the related vSwitch settings
  • Change promiscuous mode to accept and save

Edit the bridge interface

• Login to CML's Web console

  • https://{CML's IP address}:9090/
  • username : "sysadmin"
  • password : string specified during installation

• Press bridge0 after selecting Networking from the menu

  • At this time, check the interface on which the management IP address is set

• Press "+" on the port and select the interface you just checked

  • in this case "ens160"

• Confirm that bridge0 is assigned an IP address for management

The required step was the above.

Supplemental information and others

If the hypervisor is nested, then promiscuous mode must be accepted for all vNICs/vSwitches that the communication passes through.