Arista C-230 User manual

Quick Start Guide
C-230 Access Point
Arista Networks
www.arista.com
DOC-04354-03

ii Quick Start Guide: Access Point
© Copyright 2020 Arista Networks, Inc. The information contained herein is subject to change without notice. Arista Networks
and the Arista logo are trademarks of Arista Networks, Inc in the United States and other countries. Other product or service
names may be trademarks or service marks of others.
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Contents
Chapter 1. About This Guide............................................................................................................1
Chapter 2. Package Content..............................................................................................................3
Chapter 3. Access Point Overview.....................................................................................................4
Front Panel..................................................................................................................................... 4
Rear Panel...................................................................................................................................... 5
Side Panel.......................................................................................................................................6
Chapter 4. Install the Access Point...................................................................................................8
Ceiling Mount the Access Point....................................................................................................8
Wall Mount the Access Point......................................................................................................10
Power the Access Point On.........................................................................................................14
Using the C-230 with Power Adapter................................................................................. 14
Connect the Access Point to the Network...................................................................................14
Connect the Access Point using PoE...................................................................................15
Chapter 5. Access Point Troubleshooting......................................................................................16
Chapter 6. Appendix A: AP-Server Mutual Authentication........................................................17

Chapter 1. About This Guide
This installation guide explains how to deploy the C-230 access point (AP).
Important: Please read the EULA before installing the access point (AP). You can download
and read the EULA from https://www.arista.com/en/support/product-documentation.
Installing the AP constitutes your acceptance of the terms and conditions of the EULA mentioned
above.
Intended Audience
This guide can be referred by anyone who wants to install and configure the access point.
Document Overview
This guide contains the following chapters:
•Package Content (on page 3)
•Access Point Overview (on page 4)
•Install the Access Point (on page 8)
•Access Point Troubleshooting (on page 16)
Note: All instances of the term 'server' in this document refer to the Wireless Manager, unless
the server name or type is explicitly stated.
Product and Documentation Updates
To receive important news on product updates, please visit our website at https://www.arista.com/
en/support/product-documentation. We continuously enhance our product documentation based on
customer feedback.
FCC Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.
Taiwan NCC Compliance Statement

C-230 | 1 - About This Guide | 2

Chapter 2. Package Content
The access point (AP) package must contain the components shown in the following figure.
Figure 1. Package Components
Table 1. Labels: Package Components
Label Description
1 C-230 Access Point
2 15/16" (24 mm) Mounting Bracket (MNT-AP-24MM)
Important: The MAC address of the AP is printed on a label at the bottom of the product and
the packaging box. Note down the MAC address before mounting the AP on the ceiling or at a
location that is difficult to access.
If the package is not complete, please contact the Arista Networks Technical Support Team at
[email protected] or return the package to the vendor or dealer where you purchased the
product.

Chapter 3. Access Point Overview
C-230 is a tri-radio 802.11ax access point.
This chapter provides an overview of the C-230 access point (AP) and describes:
•Front Panel (on page 4).
•Rear Panel (on page 5).
•Side Panel (on page 6).
Front Panel
The front panel of the C-230 has 6 LEDs that indicate the status of various device functions.
Figure 2. Front Panel LEDs
Table 2. Labels: Front Panel LEDs
Label Description
1 Power
2 2.4 GHz Radio
3 5 GHz Radio
4 Third Radio
5 LAN1
6 LAN2
Power LED: The following table describes the Power LED states.

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Table 3. Power LED States Description
Green Orange
Solid Running at full capability Running at reduced capability
Blinking Received IP address, but not connected to the
server Did not receive an IP address
Reduced capability indicates that the AP is getting lower than the required maximum power from the
PoE switch, i.e., 802.3af instead of 802.3at.
LAN1 LED: ON when the corresponding interface is up.
LAN2 LED: ON when the corresponding interface is up and either wired guest or link aggregation is
configured.
Radio LEDs: ON when the corresponding radio is operational.
Rear Panel
The rear panel of the AP has its DC power port and 802.3at compliant PoE LAN ports to power the
device and connect it to a wired LAN.
Figure 3. Rear Panel
Table 4. Labels: Rear Panel
Label Description
1 LAN2
2 LAN1
3 Power
Table 5. C-230 Port Details
Port Description Connector Type Speed/Protocol
Power12V DC 5.5 mm overall diameter / 2.1 mm
center pinhole N/A

C-230 | 3 - Access Point Overview | 6
Port Description Connector Type Speed/Protocol
LAN
15 Gigabit Ethernet with 802.3at compliant PoE RJ-45 100M/1G/2.5G/5G Ethernet
LAN
21 Gigabit Ethernet RJ-45 100M/1G Ethernet
Note: Only the LAN1 port supports PoE+ (802.3at). LAN2 does not support PoE.
Side Panel
The side panel of the C-230 has a reset pin, USB, and console port.
Figure 4. Side Panel
Table 6. Labels: Side Panel
Label Description
1 Reset
2 USB
3 Console
Port Description Connector
Type Speed/Protocol
ConsoleEstablish ‘config shell’ terminal session via serial
connection RJ-45
•RS 232 Serial
(115200 bits per
second)
•Data bits:8; Stop bits:
1
•Parity: None
•Flow Control: None
USB USB 2.0 port USB Future Use
Reset Reset to factory default settings port. Hold down
and power cycle the device to reset. Pinhole push button N/A
When you reset the AP, the following settings are reset:

C-230 | 3 - Access Point Overview | 7
•Config shell password is reset to config.
•Server discovery value is erased and changed to the default,
redirector.online.spectraguard.net (primary) and wifi-security-server (secondary).
•All the VLAN configurations are lost.
•If a static IP is configured on the AP, the IP address is erased and DHCP mode is set. The
factory default IP address of the AP is 169.254.11.74.

Chapter 4. Install the Access Point
This chapter contains the stepwise procedure to install the access point (AP).
Zero-Configuration of the Access Point
Zero-configuration is supported under the following conditions:
•The device is in AP mode with background scanning on and 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 AP looks for the DNS entry wifi-security-server.
•The AP is on a subnet that is DHCP enabled.
Important: If the AP is on a network segment that is separated from the server by a firewall,
you must first open port 3851 for bidirectional User Datagram Protocol (UDP) and Transport Control
Protocol (TCP) traffic on that firewall. This port number is assigned to Arista Networks. Zero-
configuration cannot work if multiple APs are set up to connect to multiple servers. In this case,
the APs must be configured manually. For details on how to configure an AP manually, see the
Access Point Configuration Guide on our website at https://www.arista.com/en/support/product-
documentation .
Take a configured AP; that is, ensure that a static IP is assigned to the AP or the settings have been
changed for DHCP. Note the MAC address and the IP address of the AP in a safe place before it is
installed in a hard-to-reach location. The MAC address of the AP is printed on a label at the bottom
of the product.
The steps to install the AP with no configuration (zero-configuration) are as follows:
1. Ceiling Mount the Access Point (on page 8) orWall Mount the Access Point (on page
10).
2. Connect the Access Point to the Network (on page 14).
3. Power the Access Point On (on page 14).
Ceiling Mount the Access Point
Mounting the access point (AP) on the ceiling consists of the following steps:
1. Affix the bracket to the T -grid: Use the mounting bracket to install the AP 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

C-230 | 4 - Install the Access Point | 9
parallel to an arm of the T-grid. Ensure that the bracket is properly snapped to the T-grid, as
shown below.
2. Mounting the AP on the bracket: Place the first mounting post on the rear-side of the AP on
to the lower notch of the bracket. Rotate the AP such that the center mounting post fits in to the
center notch on the bracket. Ensure that all the mounting posts on the rear-side of the AP are
snapped in to the respective notches on the bracket. The mounting posts now properly fit in the
respective notches of the bracket and the AP is mounted properly.
Mounting Instructions using the Silhouette/Interlude Bracket Mount: The Silhouette/
Interlude mounting bracket is not a part of the standard package and must be procured
separately. The mounting instructions for the Silhouette/Interlude Bracket Mount are similar to
the Standard Package Content's mounting instructions.
Note: You should label the APs using MAC addresses or your own convention. For
example, use serial numbers, so that you can easily identify the APs.

C-230 | 4 - Install the Access Point | 10
Wall Mount the Access Point
Note: The wall mounting accessory SKU (MNT-AP-FLAT-14CM) can be ordered and
purchased separately.
Mounting the access point (AP) on a wall consists of the following steps:
1. Drill four mounting holes in the wall, as shown below.
Table 7. Labels: Dimensions to drill holes
Label Description
1 46 mm
2 83.4 mm
3 Diameter: 6.5 mm, Depth: 30 mm
2. Insert four anchors.

C-230 | 4 - Install the Access Point | 11
3. Affix the mounting bracket on the wall.

C-230 | 4 - Install the Access Point | 12
4. Attach the AP to the mounting bracket. Pull the release key outward. Attach the AP stubs to the
bracket holder, ensuring a firm fit.
5. Once attached, push in the release key to lock the hooks and make sure all the hooks are locked
in place.

C-230 | 4 - Install the Access Point | 13
6. Fasten the release key screw with a tamper-resistant T10 torx screwdriver to lock the AP to the
bracket.

C-230 | 4 - Install the Access Point | 14
Power the Access Point On
You can power the access point (AP) on by plugging one end of the Ethernet cable into the PoE
switch or injector and the other end into the Ethernet/PoE port on the AP. Ensure the PoE source you
are using is turned on.
As an alternative to PoE, you can insert a compatible power adaptor plug into an AC power outlet
and the other end into the power input port on the AP.
Note: If you are not using PoE, ensure that you use only an AC power adaptor supported by the
AP.
Using the C-230 with Power Adapter
Use a compatible power adaptor (Arista SKU: PWR-AP-W4) to power the C-230.
Warning: The C-230 is intended to be supplied with UL-listed PoE power source suitable for use at
40ºC, and whose output meets LPS requirements or PS2, with a rating of 48V DC(0.5A minimum).
If you are not using PoE+, ensure that you use only an AC power adaptor supported by the C-230
access point (AP). This product is intended to be supplied by a Listed Direct Plug-In Power Unit
marked “Class 2”, Listed Power Adapter or DC power source marked “L.P.S.” (or “Limited Power
Source”) and rated from 12 V DC, 2.5A minimum.
To power up the device with power adapter, perform the following steps:
1. Plug the power cable into the DC power receptacle at the rear of the device.
2. Plug the other end of the power cable into an 110V~240V 50/60 Hz AC power source.
3. Wait until the device is ready. Refer to the LED status table.
Connect the Access Point to the Network
To connect the access point (AP) to the network, perform the following steps:
1. Ensure that a DHCP server is available on the network to enable network configuration of the
AP.
2. Add the DNS entry wifi-security-server on all DNS servers. This entry must point to the IP
address of the server.

C-230 | 4 - Install the Access Point | 15
3. Ensure that DHCP is running on the subnet to which the AP is connected.
4. Check the LEDs on the AP to ensure that it is connected to the server.
5. Log on to the server using ssh and run the get sensor list command.
You will see a list of all Arista devices that are recognized by the server. Single Sign-On users
can go to the Monitor tab in CloudVision WiFi and check whether the device is visible under
the Monitor tab.
The AP is connected and operational.
Note: If zero configuration fails, the AP must be configured manually.
Important: If DHCP is not enabled on a subnet, the AP cannot connect to that subnet with zero-
configuration. If the DNS entry is not present on the DNS servers, or if you do not have the DHCP
server running on the subnet, you must manually configure the AP. For details on configuring an AP
manually, see the Access Point Configuration guide on our website at https://www.arista.com/en/
support/product-documentation .
Connect the Access Point using PoE
If you are using a PoE injector, make sure the data connection is plugged into a suitable switch port
with proper network connectivity.
Note: If you are connecting only one Ethernet cable, you must connect it to the LAN1 port.
For PoE port details, see the Rear Panel (on page 5) section.

Chapter 5. Access Point Troubleshooting
The table below lists some of the troubleshooting guidelines for the access point (AP).
Problem Solution
The AP did not receive a valid IP address via the
DHCP. Ensure that the DHCP server is on and available on the VLAN/subnet to which the AP is
connected. If the AP still fails to get a valid IP
address, you can reboot it to see if the problem is
resolved.
Unable to connect to the server.
•Ensure that the server is running and is
reachable from the network to which the
AP is connected. If a firewall or a router
has Access Control Lists (ACLs) enabled
between the AP and the server, ensure that
traffic on UDP port 3851 is allowed.
•Use the IP-based server discovery method
and ensure that you have correctly entered
the DNS name, wifi-security-server , on the
DNS server.
•Ensure that the DNS server IP addresses are
either correctly configured, or are provided
by the DHCP server.
•The AP might fail to authenticate with the
server. In this case, an 'Authentication failed
' event is raised on the server. Refer to the
event for recommended action.
The AP has encountered a problem.
•If you are using Arista Cloud Services, then
open the TCP port 443 (SSL). If you have an
on-premises installation, then open UDP port
3851 and port 80.
•If you are using a Proxy, Web Accelerator,
or URL Content Filter between the AP and
the Internet, ensure that the settings allow
communication between the AP and Arista
Cloud Services.
•If your configuration requires you to specify
an exact IP address or IP range for Arista
Cloud Services, please contact support-
[email protected].

Chapter 6. Appendix A: AP-Server Mutual
Authentication
The AP-server communication begins with a mutual authentication step in which the AP and server
authenticate each other using a shared secret. The AP-server communication takes place only if this
authentication succeeds.
After the authentication succeeds, a session key is generated. From this point on, all communication
between the AP and server is encrypted using the session key.
The AP and server are shipped with the same default value of the shared secret. Both the server and
the AP have CLI commands to change the shared secret.
Note: After the shared secret (communication key) is changed on the server, all APs connected
to the server will automatically be set up to use the new communication key. You must manually
configure the new communication key on an AP if it is not connected to the server when the key is
changed on the server.
Note: Although the server is backward compatible—that is, older version APs can connect to a
newer version server—this is not recommended.