Another way to define egress is the process of data being shared externally via a network’s outbound traffic. When thinking about ingress vs. egress, data ingress refers to traffic that comes from outside an organization’s network and is transferred into it. It is unsolicited traffic that gets sent from the internet to a private network. The traffic does not come in response to a request made from inside an organization’s network.
Egress traffic is a commonly used term that describes the amount of traffic that gets transferred from an organization’s host network to external networks. Organizations can monitor egress traffic for anomalous or malicious activity through egress filtering. This enables businesses to block the transfer of sensitive data outside corporate networks while limiting and blocking high-volume data transfers.