Introduction
Gigamon Fabric Manager (FM) uses a dedicated management IP address for administrative access and communication with managed nodes. If the management network changes or the appliance is moved to a different environment, the management IP address must be updated accordingly.
This guide walks through changing the management IP address of Gigamon Fabric Manager and reconnecting any previously managed nodes.
Prerequisites
Before changing the management IP address, it is recommended to temporarily remove any managed nodes from Fabric Manager.
Navigate to:
- Inventory
- Physical
- Nodes
Select the managed node, then choose:
- Actions
- Delete
Note: Removing a node from Fabric Manager does not delete the physical appliance or its configuration. It only removes the management relationship, allowing the node to be re-added after the IP address has been changed.
Change the Management IP Address
Log in to the Fabric Manager CLI.
Run the following command:
fmctl set ip static <IPv4>/<CIDR> <gateway>
Where:
<IPv4>is the new management IP address.<CIDR>is the subnet mask in CIDR notation.<gateway>is the default gateway.
Example:
fmctl set ip static 10.10.10.14/22 10.10.10.1
After the command completes, reboot the appliance.
Re-Add Managed Nodes
After Fabric Manager has restarted and is reachable using the new management IP address, re-add the managed nodes.
Navigate to:
- Inventory
- Physical
- Nodes
Select:
- Add
Follow the prompts to reconnect each Gigamon node to Fabric Manager.
Verification
- Verify the Fabric Manager web interface is accessible using the new management IP address.
- Verify each managed node reconnects successfully.
- Confirm all managed nodes report a healthy status.