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Abdock
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Block Multicast

Mon Sep 16, 2019 8:34 pm

Hello Experts,

I am using CRS326-24G-2S+ as switch, and want to block multicast traffic, do I have to use SwitchOS, or can I do this over RouterOS?



Thank you.
 
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chechito
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Re: Block Multicast

Mon Sep 16, 2019 8:57 pm

you can use:

In RouterOS switch Rules
in SwOS ACL rules
 
Abdock
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Re: Block Multicast

Mon Sep 16, 2019 9:22 pm

I have tried to search but cannot get anything which works to block the multicast traffic. Can you please help me with some pointers please.

Thank you.
 
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sebastia
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Re: Block Multicast

Tue Sep 17, 2019 11:34 pm

Have a look at http://www.firewall.cx/networking-topic ... icast.html or
https://www.cisco.com/c/dam/en/us/produ ... 310883.pdf

Drop:
drop frames to the multicast mac range
drop frames with ip protocol to the multicast ip range (https://en.wikipedia.org/wiki/Reserved_IP_addresses)

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