Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

How does centrally-switched wireless handle broadcasts?

I'm not sure about how broadcasts are handled in a centrally-switched (not FlexConnect) environment. Our network has large /22 networks for wireless users...in a traditional wired world, that's a big broadcast domain. Add multiple /22 networks in an interface group and it's even bigger. Is this a concern? Will wireless clients really process broadcasts from these networks as wired clients would?

Everyone's tags (1)
1 REPLY
Hall of Fame Super Silver

The WLC does not forward

The WLC does not forward broadcast unless you have broadcast forwarding enabled on the WLC.

http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/secwlandg20/sw2dg/ch4_2_SPMb.html#wp1307340

The WLC by default does not forward broadcast messages from WLAN clients back out onto the WLAN, which prevents a WLAN client from acting as a DHCP server and spoofing incorrect DHCP information.

-Scott
*** Please rate helpful posts ***
133
Views
0
Helpful
1
Replies