[rancid] Cisco IOS - "serial number" file changing in flash ?

vom513 vom513 at gmail.com
Wed Dec 15 20:12:55 UTC 2021


> 
> I have an 891 w/ an embedded ap802; it does not do this.  Maybe you have not
> told us enough, but rancid just reports what it receives.  So, the file is
> changing.  That could be a cisco bug (such as DE's debugging left in a
> production image) or a file that changes legitimately.  I could not guess
> which, from the example.
> 
> Can you view the contents of the file (more FOC12345LLK)?  No debugging is
> emabled (show debug)?  You're using device type 'ios’?

Thanks for the reply.

Here are the contents:

00000000:  0000148C 14A0XXXX XXXXXXXX XXXXXXXX    .... . XX XXXX XXXX

No debug is on.  Yes - using ios device type.

It’s not a huge deal as it’s not super often.  Not the most elegant solution but I could probably hack that part of the flash / dir code and regex ignore this.  Just figured someone else might have tripped over this.

Also I might check to see if there is newer IOS.  This is an older AP, so it might be at newest now.  I might also post in Cisco’s community forum and ask what this file is.

Thanks.




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