Paste into the IP restrictions setting of custom webhook modules, if used only internally inside make.com, when triggering one scenario from another one using the http module.
54.209.79.175,54.80.47.193,54.161.178.114,54.75.157.176,54.78.149.203,52.18.144.195,44.196.246.20,3.94.51.90,52.4.48.212,3.125.27.86,3.68.125.41,18.193.24.45