
Chapter 4. Install the C-100
This chapter contains the stepwise procedure to install the C-100 device.
Zero-Configuration of C-100 as Access Point
Zero-configuration is supported under the following conditions:
•The device is in AP mode with background scanning on with no SSID configured.
•A DNS entry wifi-security-server is set up on all the DNS servers. This entry should point to the IP address of the server.
By default, the device looks for the DNS entry wifi-security-server.
•The device is placed on a subnet that is DHCP enabled.
Important: If the device is placed on a network segment that is separated from the server by a firewall, you must
first open port 3851 for User Datagram Protocol (UDP) and Transport Control Protocol (TCP) bidirectional traffic on
that firewall. This port number is assigned to Arista Networks. If multiple devices are set up to connect to multiple
servers, zero-configuration is not possible. In this case, you must manually configure the APs. See the Access Point
Configuration Guide on our website at https://www.arista.com/en/support/product-documentation.
Take a configured C-100, that is, ensure that a static IP is assigned to the device or the settings have been changed for DHCP.
Note down the MAC address and the IP address of the device in a safe place before it is installed in a hard-to-reach location.
The MAC address of the device is printed on a label at the bottom of the product.
Note: You should label the devices using MAC addresses or at least your own convention. For example, use serial
numbers, so that you can easily identify the devices.
The steps to install the device with no configuration (zero-configuration) are as follows:
1. Mount the device. (page 7)
2. Power On the device. (page 8)
3. Connect device to the network. (page 9)
Mount the C-100
The C-100 mounting procedure can be divided into two parts:
1. Affix the bracket to the T -grid: Use the mounting bracket to install the C-100 on the ceiling. Fix the bracket to the T-
grid and rotate the bracket so that it snaps on the T-grid. The bracket is now parallel to an arm of the T-grid. Ensure that
the bracket is properly snapped to the T-grid. Refer to the images given below.