Show Version

The show version command is very useful. From running the command I can see the following useful pieces of information about my router.

• Model
• Uptime
• IOS Version & software release
• CPU, RAM, NVRAM & Flash details
• Configuration Register setting

Router>show version

Cisco IOS Software, 3600 Software (C3640-JK9S-M), Version 12.4(16), RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Wed 20-Jun-07 11:43 by prod_rel_team

ROM: ROMMON Emulation Microcode

ROM: 3600 Software (C3640-JK9S-M), Version 12.4(16), RELEASE SOFTWARE (fc1)

Router uptime is 1 minute

System returned to ROM by unknown reload cause - suspect boot_data[BOOT_COUNT] 0x0, BOOT_COUNT 0, BOOTDATA 19

System image file is "tftp://255.255.255.255/unknown"

Cisco 3640 (R4700) processor (revision 0xFF) with 124928K/6144K bytes of memory.

Processor board ID 00000000

R4700 CPU at 100MHz, Implementation 33, Rev 1.2

DRAM configuration is 64 bits wide with parity enabled.

125K bytes of NVRAM.

8192K bytes of processor board System flash (Read/Write)

Configuration register is 0x2142

Router>

Introduction

I will be using this blog to post notes of the commands used to configure firewalls, routers and switches in my lab. The posts are primarily created to help me as a study aid, if they help you too then that's great.