Create an input security group
You must create an input security group. The security group must allow the public network IP addresses to push to MediaLive. Following from the earlier example, it must allow these addresses:
203.0.113.19, 203.0.113.58, 203.0.113.25, 198.51.100.19, 198.51.100.59, 198.51.100.21
For details about creating an input security group, see Creating an input security group.