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New Member

default multicast behaviour

Hi everyone,

How does the WLC handle multicast traffic (HSRP,STP etc) originated in the WLAN subnets?

Do we need to specify ACLs  on  filter them or are they  blocked by default?

If ACLs required, is it best to apply on SVIs or on the  WLC itself ?

please advice.

Thanks,

Silva         

  • Getting Started with Wireless
Everyone's tags (4)
2 ACCEPTED SOLUTIONS

Accepted Solutions
Hall of Fame Super Silver

Re: default multicast behaviour

Any multicast and broadcast traffic is blocked at the wlc by default unless you are allowing multicast traffic or if you you are forwarding broadcast traffic. The traffic you mentioned are blocked by the wlc.

Sent from Cisco Technical Support iPhone App

Thanks, Scott *****Help out other by using the rating system and marking answered questions as "Answered"*****
Bronze

Re: default multicast behaviour

Hi,

The WLC by default has multicast traffic option disable, so if you need to work with multicast you will need to enable multicast on the WLC if the access points are on the same subnet as the WLC, if the access points are on a different subnet then the WLC you will need to also enable layer 3 multicast on your switches or routers.

3 REPLIES
Hall of Fame Super Silver

Re: default multicast behaviour

Any multicast and broadcast traffic is blocked at the wlc by default unless you are allowing multicast traffic or if you you are forwarding broadcast traffic. The traffic you mentioned are blocked by the wlc.

Sent from Cisco Technical Support iPhone App

Thanks, Scott *****Help out other by using the rating system and marking answered questions as "Answered"*****
Bronze

Re: default multicast behaviour

Hi,

The WLC by default has multicast traffic option disable, so if you need to work with multicast you will need to enable multicast on the WLC if the access points are on the same subnet as the WLC, if the access points are on a different subnet then the WLC you will need to also enable layer 3 multicast on your switches or routers.

New Member

Re: default multicast behaviour

Hi Scott and fbarboza,

Thanks for the calrification.

regards

Silva

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