This document describes the expansion of Chromecast Deployment Guide for AireOS Wireless LAN Controller's (WLC's) in order to cover the Converged Access configuration example.
Cisco recommends that you have knowledge of New Generation Wireless Controllers (NGWC) Release 3.6.x or later.
It is expected that Switch Virtual Interfaces (SVIs) and DHCP pools/snooping are preconfigured as per best practices.
This document is not restricted to specific software and hardware versions.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
These are the mandatory configurations for chromecast support on NGWC.
Enable Multicast Support
Enable IGMP Snooping
AP capwap multicast mode set to multicast-multicast
wireless multicast ip igmp snooping ip igmp snooping querier ap capwap multicast <Multicast IP - 239.x.x.x>
Note: Do not use multicast-unicast for AP capwap multicast mode as a general best practice.
Note: In order to verify igmp settings, run show ip igmp groups command.
Note: In order to verify wireless multicast details, run show wireless multicast and show wireless multicast group summary commands.
4. Tune data rates for optimal performance.
Sample data rate configuration for 2.4 Ghz: ap dot11 24ghz rate RATE_1M disable ap dot11 24ghz rate RATE_2M disable ap dot11 24ghz rate RATE_5_5M disable ap dot11 24ghz rate RATE_6M disable ap dot11 24ghz rate RATE_9M disable ap dot11 24ghz rate RATE_11M disable ap dot11 24ghz rate RATE_12M mandatory ap dot11 24ghz rate RATE_18M supported ap dot11 24ghz rate RATE_24M supported ap dot11 24ghz rate RATE_36M supported ap dot11 24ghz rate RATE_48M supported ap dot11 24ghz rate RATE_54M supported
Sample data rate configuration for 5 Ghz Ghz: ap dot11 5ghz rate RATE_6M disable ap dot11 5ghz rate RATE_9M disable ap dot11 5ghz rate RATE_12M mandatory ap dot11 5ghz rate RATE_18M supported ap dot11 5ghz rate RATE_24M supported ap dot11 5ghz rate RATE_36M supported ap dot11 5ghz rate RATE_48M supported ap dot11 5ghz rate RATE_54M supported
Note: This is just an example config and the data rates have to be tuned for optimal values on a per-environment basis.
Tip: If igmp snooping cannot be enabled, you can try using Broadcast forwarding: wireless broadcast. Alternatively, you can just forward the broadcasts to a specific VLAN wireless broadcast vlan <VLAN ID>
Ensure that these requirements are met.
Disable peer-to-peer blocking action
Enable multicast vlan support
Here is a config example of wlan using external RADIUS authentication with mac-filter and aaa-override enabled:
aaa new-model ! ! aaa group server radius ISE server name ISE ! aaa authentication dot1x ISE group ISE
radius server ISE address ipv4 x.x.x.x auth-port 1645 acct-port 1646 key XXXXX
wlan Chromecast <WLAN ID> Chromecast aaa-override mac-filtering ISE client vlan <VLAN ID> no peer-blocking ip multicast vlan <vlanid> // If using vlan select feature// no security wpa no security wpa akm dot1x no security wpa wpa2 no security wpa wpa2 ciphers aes security dot1x authentication-list ISE session-timeout 1800 no shutdown
Note: Depending on your choice of wlan security, choose any from these templates.
There is currently no verification procedure available for this configuration.
There is currently no specific troubleshooting information available for this configuration.