# Radius based VLAN Pooling on E-Series

**URL:** <https://community.cambiumnetworks.com/t/radius-based-vlan-pooling-on-e-series/50394>\
**Category:** Enterprise Wi-Fi Networks\
**Tags:** knowledge-base\
**Created:** [March 31, 2017, 8:53am UTC](https://community.cambiumnetworks.com/t/radius-based-vlan-pooling-on-e-series/50394 "2017-03-31T08:53:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![prabhatravi](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/p/97f17d/32.png) [@prabhatravi](https://community.cambiumnetworks.com/u/prabhatravi)\
**Post date:** [March 31, 2017, 8:53am UTC](https://community.cambiumnetworks.com/t/radius-based-vlan-pooling-on-e-series/50394/1 "2017-03-31T08:53:32Z")

</div>

**VLAN Pooling** &nbsp;is now a supported on CnPilot E-series devices.

Note: This feature is available from 3.2-r1 release build.

**Prerequisites for VLAN Pooling**

A VLAN should be present on the AP to be able to add it to the VLAN pool and AAA server should able to provide VLAN-Pool name in Cambium vlan pool radius attribute.

**Restrictions for VLAN Pooling**

The number of VLAN Pools on the AP should not exceed value of 16.

The number of VLANs mapped to a VLAN pool is not limited. But it is the responsibility of the administrator to configure feasible number of VLANs in a VLAN pool.

For expected behaviour of the VLAN pooling, the VLANs mapped in the pool must be present on the AP.

**Information About VLAN Pooling**

Whenever a wireless client connects to a wireless network (WLAN), the client is placed in a VLAN that is associated with the WLAN. In a large venue such as an auditorium, a stadium, or a conference room, university where there are numerous wireless clients, having only a single WLAN to accommodate many clients might be a challenge. The VLAN pooling feature uses a single WLAN that can support multiple VLANs. The clients can get assigned to one of the configured VLANs. This feature maps a WLAN to a single VLAN or multiple VLANs using the VLAN pool. When a wireless client associates to the WLAN, the VLAN is derived using round-robin algorithm. A VLAN is assigned to the client and the client gets the IP address from the assigned VLAN.

**Note:** In 802.11R roaming and OKC, when client roams from one &nbsp;AP to other AP, it maintain same IP address and it provide seamless roaming in VLAN Pooling also.

**How to Configure VLAN Pools**

**Creating VLAN Pools (CLI) ![vlanpool-config.JPG](https://d1okf4ta8xniw3.cloudfront.net/original/2X/8/8a9207d8a2c61299dfae7c34efdb17bbc038b9f3.jpeg "vlanpool-config.JPG")**

**Removing VLAN Pools (CLI)**

**![no-vlanpool-config.JPG](https://d1okf4ta8xniw3.cloudfront.net/original/2X/e/ed23c5d5850cc5633e9ed447279f0d3299b9ff3d.jpeg "no-vlanpool-config.JPG")**

**Creating VLAN Groups (GUI)**

 ![gui-vlanpool-config.JPG](https://d1okf4ta8xniw3.cloudfront.net/original/2X/e/ea4a5927266118fa2699206c19c4ed65b253a098.jpeg "gui-vlanpool-config.JPG")

**Enable VLAN Pooling to WLAN (CLI)**

![wlan-config.JPG](https://d1okf4ta8xniw3.cloudfront.net/original/2X/f/f873391532318f70abdd017ddd1a96e3fae7192d.jpeg "wlan-config.JPG")

**Enable VLAN Pooling to WLAN (GUI)**

 ![gui-wlan-config.JPG](https://d1okf4ta8xniw3.cloudfront.net/original/2X/b/b18a15d48b589e1aac5eeb6e6d7cb8c03c36eef1.jpeg "gui-wlan-config.JPG")

**See VLAN Pooling Distribution (CLI)**

 ![vlan-distribution.JPG](https://d1okf4ta8xniw3.cloudfront.net/original/2X/1/104b21a2f086acf7435783257581a30dd291863f.jpeg "vlan-distribution.JPG")

**Packet capture showing Cambium vlan pool attribute**

 ![radius-packet1.JPG](https://d1okf4ta8xniw3.cloudfront.net/original/2X/e/eb797bc43100240ef75fa20ea730c5dd541a3f44.jpeg "radius-packet1.JPG")

**To use Freeradius as a AAA-server for vlan pool, please follow this link** :

[http://community.cambiumnetworks.com/t5/cnPilot-E-Series-Hotspot-E500/Using-freeRADIUS-with-cnPilot](https://community.cambiumnetworks.com/t5/cnPilot-E-Series-Hotspot-E500/Using-freeRADIUS-with-cnPilot)

Add Cambium vendor specific attribute of Vlan pool name in users file in freeradius:

```
john Cleartext-Password := "sm!th"
    Tunnel-Type = VLAN,
    Tunnel-Medium-Type = IEEE-802,
    Tunnel-Private-Group-Id = 10
Cambium-Vlan-Pool-Id = "pool1"
```

**To add&nbsp;Cambium Radius details in dictionary, please follow this link** :

[http://community.cambiumnetworks.com/t5/cnPilot-E-Series-Hotspot-E500/Cambium-RADIUS-dictionary-for-WiFi/m-p/69883](https://community.cambiumnetworks.com/t/cambium-radius-dictionary-for-wifi/50024)