Cisco Workgroup Bridges
A workgroup bridge (WGB) is an access point mode that
-
provides wireless connectivity to wired clients connected on its Ethernet port
-
connects a wired network to an existing wireless infrastructure through a single wireless segment, and
-
learns the MAC addresses of its wired clients and reports them to the wireless LAN controller (WLC) using IAPP messaging.
The WGB establishes a single wireless connection to the root access point (AP). The root AP treats the WGB as a wireless client, allowing the wired devices behind the WGB to access the wireless network seamlessly. Suppose you have a group of wired devices in a conference room with no Ethernet drop available. You can connect these devices to a WGB, which allows them to communicate over the enterprise wireless network as if they were wireless clients.
Starting from Cisco IOS XE Cupertino 17.8.1, WGB is supported on the following Cisco Catalyst 9100 Series Access Points.
-
Cisco Catalyst 9105
-
Cisco Catalyst 9115
-
Cisco Catalyst 9120
Starting from Cisco IOS XE Dublin 17.10.1, WGB is supported on the following Cisco Catalyst 9100 Series Access Points.
-
Cisco Catalyst 9124
-
Cisco Catalyst 9130
From Cisco IOS XE Cupertino 17.9.1 onwards, WGB supports one radio for uplink (backhaul) connectivity and another radio for serving wireless clients. This feature is supported on the Cisco 11AX APs such as Cisco Catalyst 9105 APs, Cisco Catalyst 9115 APs, Cisco Catalyst 9120 APs.
OPEN and PSK security (WPA2 Personal) based wireless clients can be associated to WGB independent of its uplink connectivity, but they will not be able to pass traffic unless WGB has uplink connectivity. Radius server must be configured and the WGB should have uplink connectivity for authentication of wireless clients to 802.1x security (WPA2 Enterprise) WLAN. Both IPv4 and IPv6 traffic forwarding is supported for wireless clients. Static IP and Passive Client support is enabled by default on these WLANs.
These features are supported for use with WGB:
|
Feature |
Cisco Wave 2 APs |
Cisco 11AX APs |
|---|---|---|
|
802.11r |
Supported |
Supported |
|
QOS |
Supported |
Supported |
|
UWGB mode |
Supported |
Not supported |
|
IGMP Snooping or Multicast |
Supported |
Supported |
|
802.11w |
Supported |
Supported |
|
PI support (without SNMP) |
Not supported |
Not supported |
|
IPv6 |
Supported |
Supported |
|
VLAN |
Supported |
Supported |
|
802.11i (WPAv2) |
Supported |
Supported |
|
Broadcast tagging/replicate |
Supported |
Supported |
|
Unified VLAN client |
Supported |
Supported |
|
WGB client |
Supported |
Supported |
|
802.1x – PEAP, EAP-FAST, EAP-TLS |
Supported |
Supported |
|
NTP |
Supported |
Supported |
|
Wired client support on all LAN ports |
Supported in all Wired-0, 1 and LAN ports 1, 2, and 3 |
Supported in all Wired-0, 1 and LAN ports 1, 2, and 3 |
|
Second radio wireless client support |
Not supported |
Supported |
This table shows the supported and unsupported authentication and switching modes for Cisco APs when connecting to a WGB.
![]() Note |
Workgroup Bridge mode is supported on the WiFi6 Pluggable Module from Cisco IOS XE Bengaluru 17.6.1. |
|
Access Points |
Requirements |
|---|---|
|
Cisco Aironet 2800, 3800, 4800, 1562, and Cisco Catalyst 9105, 9115, 9120, 9124, and 9130, IW6300 and ESW6300 Series |
CAPWAP image starting from Cisco AireOS 8.8 release. |
Restrictions for WGB
These are the restrictions for WGB:
-
MAC filtering is not supported for wired clients.
-
Idle timeout is not supported for both WGB and wired clients.
-
Session timeout is not applicable for wired clients.
-
Web authentication is not supported.
-
The total number of clients supported by WGB (wired + wireless) is limited to 20 clients.
-
If you want to use a chain of certificates, copy all the CA certificates to a file and install it under a trust point on the WGB, else server certificate validation may fail.
-
Wired clients connected to a WGB inherit the WGB's QoS and AAA override attributes.
-
To enable the WGB to communicate with the root AP, create a WLAN and make sure that Aironet IE is enabled under the Advanced settings.
-
WPA2 Enterprise security works only if the uplink WLAN is enabled for FlexConnect local switching or Fabric enabled WLAN.
-
Radius override is not supported for wireless clients that are associated with WGB WLANs.
-
WGB does not support 802.1X wired client authentication when used with power injector.
The power-injector drops all EAPOL packets received from the wired client and does not forward it to the WGB's wired0 interface. In such cases, use PoE plus hub behind the wired0 interface and connect the wired clients to the hub.
-
After WGB reload, the WGB 802.1X wired clients behind a hub do not trigger authentication automatically, unless done manually.
After WGB is reloaded the WGB dot1x wired clients which are behind a hub remain authenticated or connected on their side and do not get notified that the WGB is reloaded. Clients are also not shown on the WGB bridge table. The client interfaces must be manually disabled and enabled back to trigger authentication.
-
When the 802.1X wired client Ethernet interface is disabled and then enabled again, client authentication might fail for some of dot1x wired clients, at times.
Configure a WGB on a WLAN (CLI)
Before you begin
Ensure WLAN security (such as authentication and encryption) is already configured.Procedure
|
Step 1 |
Enter global configuration mode. Example:
|
|
Step 2 |
Enter WLAN configuration submode. Example:
The profile-name is the profile name of the configured WLAN. |
|
Step 3 |
Configure the Cisco Client Extensions option and sets the support of Aironet IE on the WLAN. Example:
|
|
Step 4 |
Exit the WLAN configuration submode. Example:
|
|
Step 5 |
Configure WLAN policy profile and enters the wireless policy configuration mode. Example:
|
|
Step 6 |
Add a description for the policy profile. Example:
|
|
Step 7 |
Assign the profile policy to the VLAN. Example:
|
|
Step 8 |
Configure WGB VLAN client support. Example:
|
|
Step 9 |
Configure WGB broadcast tagging on a WLAN. Example:
|
|
Step 10 |
Restart the policy profile. Example:
|
|
Step 11 |
Exit the wireless policy configuration mode. Example:
|
|
Step 12 |
Configure policy tag and enters policy tag configuration mode. Example:
|
|
Step 13 |
Map a policy profile to a WLAN profile. Example:
|
|
Step 14 |
Exit policy tag configuration mode, and returns to privileged EXEC mode. Example:
|
Verify WGB status on the controller
Use these commands to verify the status of a WGB.
To display the wireless-specific configuration of active clients, use this command:
Device# show wireless client summary
To display the WGBs on your network, use this command:
Device# show wireless wgb summary
To display the details of wired clients that are connected to a particular WGB, use this command:
Device# show wireless wgb mac-address 00:0d:ed:dd:25:82 detail

Feedback