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Cisco PIX Firewall Hardware Installation Guide
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Chapter 6 PIX 525
Installing a Circuit Board in the PIX 525
Figure 6-18 PIX Firewall VPN Accelerator Circuit Board
Gigabit Ethernet Circuit Board
PIX Firewall supports 1000 Mbps (Gigabit) Ethernet. The Gigabit Ethernet circuit board uses the
gb-ethernet device name and only has one hardware speed and the following duplex options:
• 1000SXfull—Forces full-duplex operation
• 1000BaseSX—Forces half-duplex operation
• 1000auto—Auto negotiates full or half duplex
Note We highly recommend that you use a GE failover link when connecting the PIX 525 with GE interfaces.
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