ce/mongodb-wire-protocol/>MongoDB Wire Protocol</a> runs on top of TCP, you
can control the egress traffic to your MongoDB as traffic to any other <a href=/v1.15/blog/2018/egress-tcp/>external TCP service</a>. To
control TCP traffic, a block of IPs in the <a href=https://tools.ietf.org/html/rfc2317>CIDR</a> notation that includes the IP
address of your MongoDB host must be specified. The caveat here is that sometimes the IP of the MongoDB host is not
stable or known in advance.</p><p>In the cases when the I