is this the result of a tftpdnld ??
This happened to me a long while back and I had to set a variable to tell it
to ignore the checksum. I was using a 2600 though.
Here is the skinny from CCO:
You can view the ROMMON environment variables by using the set command, as
shown below:
rommon 3 > set
PS1=rommon ! >
IP_ADDRESS=172.18.16.76
IP_SUBNET_MASK=255.255.255.192
DEFAULT_GATEWAY=172.18.16.65
TFTP_SERVER=172.18.16.2
TFTP_FILE=quake/rel22_Jan_16/c2600-i-mz
The variables to set for tftpdnld are shown below:
usage: tftpdnld
Use this command for disaster recovery only to recover an image via
TFTP.
"tftpdnld" has no arguments. Monitor variables are used for
arguments.
(Syntax: "VARIABLE_NAME=value" and use "set" to show current
variables.)
"ctrl-c" or "break" stops the transfer before flash erase begins.
The following variables are REQUIRED to be set for tftpdnld:
IP_ADDRESS: The IP address for this unit
IP_SUBNET_MASK: The subnet mask for this unit
DEFAULT_GATEWAY: The default gateway for this unit
TFTP_SERVER: The IP address of the server to fetch from
TFTP_FILE: The filename to fetch
The following variables are OPTIONAL:
TFTP_VERBOSE: Print setting. 0=quiet, 1=progress(default),
2=verbose
TFTP_RETRY_COUNT: Retry count for ARP and TFTP (default=7)
TFTP_TIMEOUT: Overall timeout of operation in seconds
(default=2400)
TFTP_CHECKSUM: Perform checksum test on image, 0=no, 1=yes
(default=1)
rommon 14 >
*************************
check out TFTP_CHECKSUM and set it to 0
remember, all the variables must be entered in upper case.
Once I set that, the image went in fine.
Kevin Wigle
----- Original Message -----
From: "Gareth Hinton"
To:
Sent: Friday, 02 November, 2001 19:55
Subject: 2500 IOS TFTP Problem - For a change! (sarc) [7:25144]
> Hi all,
>
> This is not a major problem as I am just playing, but having a nightmare
> trying to get 2500 image on. I had the same nightmare last time with 12.1.
> It went on eventually, for no reason whatsoever, by just repeating the
> process.
>
> I seem to remember that there maybe a way to make the router ignore the
> checksum. Anybody know if I've dreamt this up or whether there is actually
a
> method.
>
> Cheers,
>
> Gareth
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> [OK - 15445320/16777216 bytes]
>
> Verifying checksum... invalid (expected 0x73BD, computed 0xE283)
> Flash copy took 0:08:26 [hh:mm:ss]
> A(boot)#reload
>
> snip......
>
>
> System flash directory:
> File Length Name/status
> 1 15445320 122.bin [invalid checksum]
> [15445384 bytes used, 1331832 available, 16777216 total]
> 16384K bytes of processor board System flash (Read/Write)
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=25154&t=25144
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