Forcepoint Email Security interfaces (E1 and E2, or P1 and P2)

Forcepoint Email Security interfaces handle traffic into and out of the email module. Set up interfaces E1 (P1), E2 (P2), and C correctly before deploying off-appliance components.

Note:

The names of the interfaces vary depending on appliance model.

On V10000 G4R1, E1 and E2 are used.
On V5000, X-series,Virtual Appliances, V10000 G4R2, V20000 P1 and P2 are used.

Both the E1 (P1) and E2 (P2) interfaces can be used to accept inbound traffic and send outbound traffic.
A typical configuration is to use E1 (P1) for both inbound and outbound traffic; E2 (P2) is not used.
Another option is to configure E1 (P1) to accept inbound and E2 (P2) to send outbound traffic.
When you need to support a large volume of outbound traffic, you can configure virtual interfaces on E1 or E2 (P1 or P2).

Note:

On V10000 G4R1, E1 and E2 are used. Keep this in mind when you configure Forcepoint Email Security.

On other appliances, if you use the P2 interface, the P1 interface is bound to eth0, and the P2 interface is bound to eth1. Keep this in mind when you configure Forcepoint Email Security.