What are the requirements for allowing IGMP traffic to pass through a transparent ASA 5550?
I have inherited a configuration that is currently configured to alloww IGMP from any to any and would like to restrict this protocol. On the trusted side I ave a single host configured for multicast and on the untrusted side there is a switch and then router. I do not control the router or switch configuration on the untrusted side.
My questions are:
- Is IGMP allowed through by default?
- Are the ACL entrys "access-list outside-in extended permit igmp any any" and "access-list inside-out extended permit igmp any any"
required to allow IGMP join, query, leave etc...?
- If this is required how do I limit the source and destination ip range?
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...