PIX 515E Front Panel
The rear of the PIX 515E contains the Ethernet ports and the console port. The PIX 515E
can handle up to four additional Ethernet interfaces. This could be a single four-port Ethernet
card (see Figure 3-8) or two single-port cards (see Figure 3-9). The PIX 515E automatically
recognizes and numbers any additional interfaces that are installed.
The PIX 515E also can be configured with a VAC or VAC+. The VAC and VAC+ handle
much of the VPN traffic processing (encryption and decryption), thus improving the
firewall’s performance. The VAC and VAC+ are recommended for firewalls that connect
multiple high-traffic VPNs.