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

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: 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