Netgear WC7500 - ProSAFE® Wireless Controller User Manual

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Maintain the Wireless Controller and Access Points 
278
ProSAFE Wireless Controller 
Configure Multicast Firmware Upgrade for Access Points
latest firmware that is loaded on the wireless controller. By default, this firmware upgrade 
process uses multicast, which allows all access points to be upgraded simultaneously. If you 
prefer, you can disable multicast and let the wireless controller use unicast for the firmware 
upgrade process (see 
on page 279). Also, if the 
multicast firmware upgrade process fails three times, the wireless controller automatically 
switches to the unicast firmware upgrade process.
With the default multicast firmware upgrade process, the wireless controller distributes 
multicast IP addresses to the access points, enabling them to join the multicast group and to 
receive the firmware upgrade.
Change the Multicast Firmware Upgrade Settings
By default, the wireless controller uses IP range 239.255.0.0–239.255.0.255 for the multicast 
firmware upgrade process. If your network requires that the wireless controller uses a 
different multicast IP range, you can configure the IP range on the AP Upgrade Settings 
page.
To configure another multicast IP address range and port for the firmware upgrade 
process:
1. 
Open a web browser, and in the browser’s address field, type the wireless controller’s IP 
address.
By default, the IP address is 192.168.0.250.
The wireless controller’s login window opens.
2. 
Enter your user name and password.
3. 
Click the Login button.
The wireless controller’s web management interface opens and displays the Summary 
page.
4. 
Select Maintenance > Upgrade > AP Upgrade Settings.
5. 
Configure the settings as described in the following table.