Wireless Controllers C5210, C5110, C4110, C25, C35 and V2110

The controller platforms have an admin port for dedicated administrative access. They create the IP address and Gateway address for the Admin topology on the controller/gateway. The Admin topology is a default physical topology that references the physical admin port.

Change the controller's management port and Gateway IP addresses using the Command Line Interface (CLI) so that the GUI can be accessed from a browser on the administrator's workstation. After that, the controller or V2110 can be accessed via CLI (ssh) or GUI (ssl) for configuration.

ExtremeWireless Appliance GUI via Ethernet

Use a laptop computer with a web browser. Connect the supplied cross-over Ethernet cable between the laptop and management Ethernet interface of the ExtremeWireless Appliance to perform configuration via the ExtremeWireless Assistant GUI.

CLI Commands via Null Modem

Use a console supporting VT100 emulation, attached to the DB9 serial port (COM1 port) of the ExtremeWireless Appliance via a cross-over (null modem) cable. Use the CLI commands to define IP addresses for the admin interface and gateway:

At the root level, enter the topology context:
```
EWC.extremenetworks.com# topology
```
Enter the Admin context (Admin is a pre-defined topology-name):
```
EWC.extremenetworks.com:topology# Admin
```
Enter the Layer 3 context: (note that the first character of the command is an “l”, as in “Layer”):
```
EWC.extremenetworks.com:topology:Admin# l3
```

Enter the IP address for the admin interface with the ip command:

EWC.extremenetworks.com:topology:Admin:l3# ip <ipv4 address>/<CIDR>

Enter the IP address for the gateway to the admin interface with the gateway command:
```
EWC.extremenetworks.com:topology:Admin:l3# gateway <ipv4 address of gateway>
```
Apply the ip and gateway command inputs with the apply command:
```
EWC.extremenetworks.com:topology:Admin:l3# apply
```

For more information about CLI commands and syntax, see the CLI Guide.

Virtual Gateway V2110

You cannot access the ExtremeWireless V2110 Virtual Gateway using a laptop and a back-to-back wired connection. The admin interface must be given an IP address for the virtual network inside the vSphere server. Use the vSphere console to log in to the controller CLI and use CLI commands to define IP addresses for the admin interface and gateway:

At the root level, enter the topology context:
```
EWC.extremenetworks.com# topology
```
Enter the Admin context:
```
EWC.extremenetworks.com:topology# Admin
```
Enter the Layer 3 context (note that the first character of the command is a lowercase “L”, as in “layer”):
```
EWC.extremenetworks.com:topology:Admin# l3
```

Enter the IP address for the admin interface with the ip command:

EWC.extremenetworks.com:topology:Admin:l3# ip <ipv4 address>/<CIDR>

Enter the IP address for the gateway to the admin interface with the gateway command:
```
EWC.extremenetworks.com:topology:Admin:l3# gateway <ipv4 address of gateway>
```
Apply the ip and gateway command inputs with the apply command:
```
EWC.extremenetworks.com:topology:Admin:l3# apply
```