ICMP TTL expired for multicast traffic?

[sergeyrar]

Is there such a thing?
Or Multicast traffic is dropped silently when hitting TTL=0?



Thanks:-)

[srg]

It's silently dropped as per RFC1112 section 7.2:

An incoming datagram with an IP host group address in its source address field is
quietly discarded.  An ICMP error message (Destination Unreachable, Time Exceeded,
Parameter Problem, Source Quench, or Redirect) is never generated in response to a
datagram destined to an IP host group.

[Reggle]

Always silently dropped. srg beat me with the RFC, I've come across it as well. If it wasn't, it would be an effective way to create DDoS attacks I think.

[sergeyrar]

Thanks:-)