Layer 3 Technologies - Layer 3 multicast - Implement and troubleshoot IPv4 protocol independent multicast
3 important questions on Layer 3 Technologies - Layer 3 multicast - Implement and troubleshoot IPv4 protocol independent multicast
What is the command to check if an interface is multicast enabled?
R1#show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
192.168.1.1 GigabitEthernet0/0 v2/D 1 30 1 192.168.1.2
D=dense mode
What does SSM solve? 3
-Overlapping multicast addresses (same multicast address/different source address)
-Denial of service attack (check source address)
-Deployment complexity; deployment of RP are not needed, because source adddress are already known
-Denial of service attack (check source address)
-Deployment complexity; deployment of RP are not needed, because source adddress are already known
What is the command to deny outgoing multicast stream 231.1.1.1 from 192.168.1.1 on interface gi0/0?
(config)# access-list extended filter-multicast
deny ip host 192.168.1.1 host 231.1.1.1
permit ip any any
(config-if)ip multicast boundary filter-multicast out
deny ip host 192.168.1.1 host 231.1.1.1
permit ip any any
(config-if)ip multicast boundary filter-multicast out
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