I just bought a PIX 520 and need to find out if it's the failover, restricted, or unrestricted bundle. Here is the show version from it:
pixfirewall# sh ver
Cisco Secure PIX Firewall Version 5.2(5)
Compiled on Mon 05-Feb-01 20:01 by morlee
pixfirewall up 7 secs
Hardware: SE440BX2, 128 MB RAM, CPU Pentium II 349 MHz
Flash i28F640J5 @ 0x300, 16MB
BIOS Flash AT29C257 @ 0xfffd8000, 32KB
0: ethernet0: address is 00d0.b790.191d, irq 11
1: ethernet1: address is 00d0.b790.1918, irq 10
2: ethernet2: address is 00e0.b601.2f02, irq 9
3: ethernet3: address is 00e0.b601.2f01, irq 11
4: ethernet4: address is 00e0.b601.2f00, irq 15
5: ethernet5: address is 00e0.b601.2eff, irq 10
Licensed connections: 65536
Serial Number: 18031982 (0x113256e)
Activation Key: 0x710871d6 0x8d6661bb 0x879eae46 0xe1932a78