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pol
Community Member

How to tftp boot both IOS and config in factory default 26xx?

I would like to automate an upcoming installation by having both IOS and

configuration downloaded from a tftp server every time the routers boot.

I would like to avoid having to enter any configuration or new IOS in the

routers before shipping them to the installation sites, if possible.

Downloading config to a router without startup config is no problem.

Downloading IOS is no problem if the routers have the boot system tftp

command in tha startup config.

But when I try to download both IOS and config, I can't get it to work. I boot the

router and it loads network-confg and hostname-confg ok. But then it thinks

that it has finished with the boot sequence and doesn't boot IOS from tftp

even though I have boot system tftp in the config that is downloaded.

Anyone have this working?

The tftp server is reached via a serial interface (WIC-2T).

The router at the other side of the serial line has ip helper pointing to

the tftp server. I have also tried adding the IP number of the tftp server in

the boot system tftp command in the downloaded config files.

The ideal solution would be to load IOS and config, in whatever order it

is easiest to do it, and then load config again to be able to use IOS commands

that doesn't work in IP IOS. E.g. IPX or AT commands.

Thanks!

3 REPLIES
Bronze

Re: How to tftp boot both IOS and config in factory default 26xx

It seems that you have to change config register. The last digit has to be 1 in order for router to load image thru tftp. If it's 0x2102, change it to 0x2101.

http://www.cisco.com/univercd/cc/td/doc/product/l3sw/8540/cnfg_gd/ccfg8540.htm

HTH,

Ming

pol
Community Member

Re: How to tftp boot both IOS and config in factory default 26xx

No, I checked that and 2 through F should be network boot. 1 is bootrom if

I remember right.

Bronze

Re: How to tftp boot both IOS and config in factory default 26xx

You are absolutely right. I was thinking of booting to bootrom. Sorry about that. Please ignore my reply.

Ming

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