Issuing the show version command on a Cisco Adaptive Security Appliance (ASA), often called a network firewall displays information unique to that type of hardware. Look at the output of the show version command on a firewall and take note of the following information:
IOS version
Name of the image file
System uptime
Type of processor and hardware platform
Amount of RAM
Amount of flash memory
MAC address
Number of ports on the switch
Licensed features
Serial number
Current configuration register
Here is what the show version command displays for an ASA:
ciscoasa> show version
Cisco Adaptive Security Appliance Software Version 8.2(1)11
Device Manager Version 6.2(3)
Compiled on Mon 21-Sep-09 17:47 by builders
System image file is "disk0:/asa821-11-k8.bin"
Config file at boot was "startup-config"
ciscoasa up 28 mins 4 secs
Hardware: ASA5505, 256 MB RAM, CPU Geode 500 MHz
Internal ATA Compact Flash, 128MB
BIOS Flash M50FW080 @ 0xffe00000, 1024KB
Encryption hardware device : Cisco ASA-5505 on-board accelerator (revision 0x0)
Boot microcode : CN1000-MC-BOOT-2.00
SSL/IKE microcode: CNLite-MC-SSLm-PLUS-2.03
IPSec microcode : CNlite-MC-IPSECm-MAIN-2.04
0: Int: Internal-Data0/0 : address is 001f.ca8c.93da, irq 11
1: Ext: Ethernet0/0 : address is 001f.ca8c.93d2, irq 255
2: Ext: Ethernet0/1 : address is 001f.ca8c.93d3, irq 255
3: Ext: Ethernet0/2 : address is 001f.ca8c.93d4, irq 255
4: Ext: Ethernet0/3 : address is 001f.ca8c.93d5, irq 255
5: Ext: Ethernet0/4 : address is 001f.ca8c.93d6, irq 255
6: Ext: Ethernet0/5 : address is 001f.ca8c.93d7, irq 255
7: Ext: Ethernet0/6 : address is 001f.ca8c.93d8, irq 255
8: Ext: Ethernet0/7 : address is 001f.ca8c.93d9, irq 255
9: Int: Internal-Data0/1 : address is 0000.0003.0002, irq 255
10: Int: Not used : irq 255
11: Int: Not used : irq 255
Licensed features for this platform:
Maximum Physical Interfaces : 8
VLANs : 20, DMZ Unrestricted
Inside Hosts : Unlimited
Failover : Active/Standby
VPN-DES : Enabled
VPN-3DES-AES : Enabled
SSL VPN Peers : 2
Total VPN Peers : 25
Dual ISPs : Enabled
VLAN Trunk Ports : 8
Shared License : Disabled
AnyConnect for Mobile : Disabled
AnyConnect for Cisco VPN Phone : Disabled
AnyConnect Essentials : Disabled
Advanced Endpoint Assessment : Disabled
UC Phone Proxy Sessions : 2
Total UC Proxy Sessions : 2
Botnet Traffic Filter : Disabled
This platform has an ASA 5505 Security Plus license.
Serial Number: JMX1214Z0LF
Running Activation Key: 0xe6135258 0xe84c9b0d 0x6c501544 0x90d4f8d0 0x400ab69d
Configuration register is 0x1
Configuration has not been modified since last system restart.
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Source:http://www.dummies.com/how-to/content/cisco-networking-show-version-command-on-a-firewal.html
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