This article describes how to change the Subnet IP (SNIP) address and NetScaler IP (NSIP) address for a secondary or primary appliance of a high availability setup.

Background

You might want to change the SNIP and NSIP on an appliance because of the changes in the network setup or a redundant pair of NetScaler application switches.

Instructions

Complete the following procedure to modify the SNIP and NSIP on a NetScaler HA pair:

1. To avoid any IP address conflicts, it is recommended that you remove the secondary appliance from the network.

2. Run the following command on the primary NetScaler appliance to remove the remote node:
   rm node <node_id>

   This command detaches both the NetScaler appliances from the high availability setup. You can use "show ha node" to check the Node ID of remote node. In most cases, the local node has Node ID 0 and the remote node has Node ID 1.

3. Make the necessary changes to the NSIP on both the NetScaler appliances using the following command:
   configns
   This command displays menu-driven options to configure the management IP. A reboot will be promoted after the change. 

4. On the primary NetScaler appliance, make the required changes to the Subnet IP.

   1. Run the following command to add an MIP:
      add ns ip <New_IP_address> <subnet_mask> -type SNIP

   2. Run the following command to remove the existing Subnet IP:
      rm ns ip <Existing_IP_Address>
      Note: You cannot remove the existing Subnet IP till another Subnet IP exists in an appliance. You must add a Subnet IP before you remove the only Subnet IP from the appliance.

5. Run the following command to add a node to the primary appliance:
   add node 1 <IP_Address_Of_Secondary_Appliance>

6. Run the following command to add a node to the secondary appliance:
   add node 1 <IP_Address_Of_Primary_Appliance>

7. Connect the secondary appliance to the network.

8. The secondary NetScaler appliance synchronizes and retrieves the configuration from the primary appliance.

Citrix Documentation - Configuring NetScaler-Owned IP Address