Route Casue y Router Rebooted?

[srikanth ath]

Hello Expert,

The router rebooted by itself or reloaded. How to find the route cause why it got rebooted.

Thanks,

XXXXXXX#  sh version
Cisco IOS Software, 1841 Software (C1841-IPBASE-M), Version 12.4(1c), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Tue 25-Oct-05 17:10 by evmiller

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

XXXXXXX uptime is 2 days, 22 hours, 5 minutes
System returned to ROM by power-on
System restarted at 10:52:58 EST Fri Mar 7 2014
System image file is "flash:c1841-ipbase-mz.124-1c.bin"

Cisco 1841 (revision 7.0) with 97280K/33792K bytes of memory.
Processor board ID FTX1206W03B
2 FastEthernet interfaces
1 Serial interface
WIC T1-DSU
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
31808K bytes of ATA CompactFlash (Read/Write)

[srikanth ath]

I have attached Tech-Support output

[Jose Solano]

Hi,

 There is no crash file on the logs, only thing is on the show version command the output shows System returned to ROM by power-on, that said you can infer that the router was either power-cycled, or that the power source went down for a few seconds. Verify your power source and troubleshoot the outlet circuit (power to router). See the link below:

http://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/ios-software-releases-121-mainline/7957-crashes-lesscommon.html#power

Hope this helps.