Cisco SSG-6510
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The Cisco SSG-6510 was a device introduced by Cisco in 1998 that allows dynamic direction of IP traffic to various services. It was typically deployed at the edge of a service provider's network where users would connect, log in, and be directed to whatever service they were paying for.
The SSG-6510 runs a derivative of Wind River Systems', VxWorks, and included a utility to flash the BIOS chip in-circuit. It was constructed using many of the same hardware components found in the Cisco PIX 510/520 and the LocalDirector 410/416/420/430, such as its chassis, Intel 440LX/440BX/440BX2 motherboard, Intel 82557 NIC's, and 2MB flash card. It comes with a Pentium II 300 or 450MHz CPU, 384MB of SDRAM, and 2MB of flash storage for the OS.
As demonstrated by its "hardware" command, the version of VXWorks running on the SSG-6510 recognizes only Intel Pro/100 cards with the 82557 controller and the 82553 PHY chip. Intel Pro/100 cards with the 82557 controller and the 82555 PHY will work, but VXWorks doesn't properly identify the 82555.
