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