Before configuring the IP-output, you must familiarize yourself with the rules and guidelines for IPv4 Multicast addresses and ports.
The multicast range 239.x.x.x are typically used for IP-TV in private networks.
Please read more here:
IETF IANA Guidelines for IPv4 Multicast Address Assignments : RFC5771
IANA Notes on IPv4 Multicast Address Space Registry : 126.96.36.199-188.8.131.52
Wikipedia article on Multicast addresses : Multicast address
HP network switches: IP multicast address groups excluded from IGMP filtering: https://techhub.hpe.com/