RE: boot ios from tftp

From: Jung, Jin (jin.jung@lmco.com)
Date: Wed Sep 10 2003 - 09:11:42 GMT-3

-- Here is my 2 cents,,

Since you can not configure anything on R1,
You can not change boot field or config-register on R1.

You can only configure R2 to provide TFTP service R1,
And R1 will receive boot file from R2 automacally once it boots up.
And do this with out any configuration on R1.

--- Well,, it sounds like - auto-install -- to me...
Configure R2 with TFTP server command tftp-server flash:3640-igk-122.bin

And configure autoinstall --

And I guess DHCP too?? I am not sure you need this or not,

SO once R1 boots up with out any configuration what so ever, it will still
get the image file automatically from R2.

David,, Does this meet your requirements??

Jin Jung....

-----Original Message-----
From: A Paradela [mailto:aparadela@earthlink.net]
Sent: Tuesday, September 09, 2003 1:16 PM
To: 'Cristian Henry H'; 'David zhao'
Cc: 'Nguyen Hoang Long'; ccielab@groupstudy.com
Subject: RE: boot ios from tftp

My 2 cents...

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun
_c/ffcprt2/fcf010.htm#1001503

>> When loading a default system image from a network server, the router
uses the configuration register settings to determine the default system
image filename for booting from a network server. The router forms the
default boot filename by starting with the word cisco and then appending the
octal equivalent of the boot field number in the configuration register,
followed by a hyphen (-) and the processor type name (cisconn-cpu). See the
appropriate hardware installation guide for details on the configuration
register and the default filename.

based on this, configure the following cmd on r2:

 tftp-server flash flash:actual_image_name alias ciscox-C2600

where r1's boot field is set to x and the "processor type name" is C2600
(guessing here based on
http://www.cisco.com/public/scc/compass/common/activities/Tool-confreg.htm#T
able3)

-AP

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Cristian Henry H
Sent: Monday, August 25, 2003 11:19 AM
To: David zhao
Cc: Nguyen Hoang Long; ccielab@groupstudy.com
Subject: Re: boot ios from tftp

If the boot field is 2 through f, if there aren't boot system commands on
configuration file, if there isn't a valid image on flash device, the router
tries to boot from the network using the "default image name". Now these
names depend on the router's plataform, ie, c7200, c2600, etc. If r1 is a
c2600, r2 has to have ios for r1 loaded into his flash with the name, and
with command tftp-server flash:default-image-name-c2600

David zhao ha escrito:
>
> i agree with your idea. thx !!!
> ----- Original Message -----
> From: "Nguyen Hoang Long" <ng-hlong@hn.vnn.vn>
> To: "David zhao" <zhaobaolong@boco.com.cn>
> Sent: Monday, August 25, 2003 3:08 PM
> Subject: Re: boot ios from tftp
>
> > boot tftp .... should be already in r1. If not, there's no way that
> > i
can
> > think of.
> >
> > ----- Original Message -----
> > From: "David zhao" <zhaobaolong@boco.com.cn>
> > To: "Nguyen Hoang Long" <ng-hlong@hn.vnn.vn>
> > Sent: Sunday, August 24, 2003 2:43 AM
> > Subject: Re: boot ios from tftp
> >
> >
> > > your response is really appreciated.
> > >
> > > I think that "tftp-server flash ......" on r2 is not enough
> > > .whether
or
> > not using boot tftp ... on r1? but it isn't allowed .
> > > ----- Original Message -----
> > > From: "Nguyen Hoang Long" <ng-hlong@hn.vnn.vn>
> > > To: "David zhao" <zhaobaolong@boco.com.cn>
> > > Sent: Monday, August 25, 2003 8:44 AM
> > > Subject: Re: boot ios from tftp
> > >
> > >
> > > > Is "tftp-server flash ......" on r2 what you're looking for ?
> > > >
> > > > ----- Original Message -----
> > > > From: "David zhao" <zhaobaolong@boco.com.cn>
> > > > To: <ccielab@groupstudy.com>
> > > > Sent: Saturday, August 23, 2003 7:15 PM
> > > > Subject: boot ios from tftp
> > > >
> > > >
> > > > > hi all
> > > > >
> > > > > question :
> > > > > config on r2 so that r2 provide IOS image for r1 when r1 losed
> > > > > IOS
> > image
> > > > .you couldn't config anything on r1.
> > > > >
> > > > > how would i do? thx for your kind reply.
> > > > >
> > > > >
> > > > >
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--
Cristian E. Henry
REUNA

E-mail: chenry@reuna.cl
Fono: 56-2-3370336

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