Two interface of USG2210 connect with two network cards of server separately, server supplies encryption and decryption service, the current problem is: the first network card send multicast with responsibility, the second network card takes charge of interface multicast, but customer noticed that the second network card not only receive but also send multicast by software, the requirement of customer is: whether our devices have the command to make interface received only, non send of multicast or not, and customer also ask us meeting their requirement without packet filtering.
Solutions as bellow:
1、 configure multicast TTL command on interface, limit the least TTL of multicast message which could send out.
[USG5500-GigabitEthernet0/0/8]multicast minimum-ttl ?
INTEGER<1-255> Multicast minimum TTL Value
If TTL configured too big (255 for example), which is bigger than the TTL (62 for example) in multicast message, then the multicast message couldn’t send out from this interface.