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RE: Any Cisco-experienced folks wanna tackle this one?

  • From: Bonin, Brad T
  • Date: Tue Sep 29 15:14:02 1998

99.9% sure it is not a hw problem nor is it your IOS version.

If flash is not being loaded or is crashing during load, you might have to
reload microcode.
If flash is loaded and an attempt is made to load the config file from NVRAM
and it crashes, then I suggest you go into ROMMON> and erase your NVRAM and
reload.  This has fixed the same problem for me in the past.  The problem
usually lies in a file being corrupted during a power down.  

If you need more assistance, please respond directly.

Brad Bonin
Internetwork Engineering - EDS

-----Original Message-----
From: Jason Lixfeld [mailto:jlixfeld@idirect.com]
Sent: Tuesday, September 29, 1998 12:32 AM
To: Kevin Brown
Cc: nanog@merit.edu
Subject: Re: Any Cisco-experienced folks wanna tackle this one?


So I take it you cannot load the IOS in the flash?  Have you tried getting
into ROMMON> by breaking the boot?  That may help decipher where the
problem lies.  It may be the pre-boot flash (I think the Ciscos have a
shrunken bootflash and then a full size IOS image in flash).

My $0.02.

On Mon, 28 Sep 1998, Kevin Brown wrote:

> I will expect replies to this message directly as it doesn't really fit
> into the normal fodder for nanog, but it is a last ditch effort for
problem
> resolution.
> 
> I have a customer who I am integrating into our network via a T1 link and
> have already gotten all the nominal routing setup prepared.  This customer
> is using RFC1918 addressing on his LAN, and requires a firewall-type
> solution with NAT capabilities.  Bless this customer for thinking ahead
> with his internal addressing :=)
> 
> Anyway,  I have run into a problem with his hardware/software provisioning
> and I think this can be recreated in a lab environment:
> 
> Cisco 1601 router
> 6 MB Flash
> 4 MB DRAM
> WIC-1DSU-56K4
> IP Plus/Firewall IOS version 11.3
> (actual image name: c1600-nosy-mz.113-3.T )
> 
> Everytime I have start the router, I get a software crash that TAC says
> should not be happening. 
> 
> If anyone else might have this equipment setting around, and be willing to
> replicate this and see what happens for you, I would much appreciate
> hearing about it. I'm thinking I've found an ewps in the code/hardware
> configuration and have just provisioned a non-working solution. I'd like
to
> hear what the rest of you might come up with.  Yes, I know it's a small
> configuration, but surely we've all got lessor routers in the field with
> similar requirements.
> 
> 
> Thanks in advance if you would assist
> 
> Kevin Brown
> 




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