How to backup Router IOS/Flash on TFTP Server
Step 1. Connect Router to the TFTP server
Step 2. Connect Router to PC using Console cable
Step 3. Access Router using Putty utility or hyper terminal of windows
Step 4. Configure Router Interface IP address for connecting TFTP
server
IP address configuration
Router>enable
Router#
Router#configure terminal
Router(config)#interface
fastEthernet 0/0
Router(config-if)#ip address
20.0.0.1 255.0.0.0
Router(config-if)#no
shutdown
Router(config-if)#
Router(config-if)#exit
Router#
Step 5. Now Show the flash file to
check IOS file name
Router#
Router#show
flash
OUTPUT
System flash
directory:
File Length Name/status
3 5571584
c2600-i-mz.122-28.bin
2 28282
sigdef-category.xml
1 227537
sigdef-default.xml
[5827403
bytes used, 58188981 available, 64016384 total]
63488K bytes
of processor board System flash (Read/Write)
Step 6. Now backup flash to the TFTP
server
(Before do
this step, check the connectivity of tftp server)
Router#copy
flash tftp
Source
filename []? c2600-i-mz.122-28.bin
Address or
name of remote host []? 20.0.0.2
Destination
filename [c2600-i-mz.122-28.bin]?
Writing
c2600-i-mz.122-28.bin....!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK -
5571584 bytes]
5571584
bytes copied in 3.156 secs (404504 bytes/sec)
Router#
(Remote Host means TFTP server IP - 20.0.0.2)
Backup process is competed successful
I am deleting flash file to show you restoring IOS from TFTP server
Delete Flash.....
Router#delete c2600-i-mz.122-28.bin
Delete
filename [c2600-i-mz.122-28.bin]?
Delete flash:/c2600-i-mz.122-28.bin? [confirm]y
Showing flash
Router#show
flash
System flash
directory:
File Length
Name/status
2 28282
sigdef-category.xml
1 227537
sigdef-default.xml
[255819
bytes used, 63760565 available, 64016384 total]
63488K bytes of processor board System flash (Read/Write)
There is no flash file is showing
Now restore the IOS flash from TFTP server
Step 1 First Reload the Router by running reload command
Router#reload
While Booting Press Ctlr + C for boot in Rommon Mode
The system is unable to boot
automatically. The BOOT
environment variable needs
to be set to a bootable
image.
rommon 1 >
Step 2 Download flash from TFTP
server
rommon 4
> tftpdnld
The Output will be like this
Missing or
illegal ip address for variable IP_ADDRESS
Illegal IP
address.
usage:
tftpdnld
Use this
command for disaster recovery only to recover an image via TFTP.
Monitor
variables are used to set up parameters for the transfer.
(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=7200)
TFTP_CHECKSUM:
Perform checksum test on image, 0=no, 1=yes (default=1)
FE_SPEED_MODE:
0=10/hdx, 1=10/fdx, 2=100/hdx, 3=100/fdx, 4=Auto(deflt)
Now You Have to configure the following setting as I configured
rommon 5
> IP_ADDRESS=20.0.0.1
rommon 6
> IP_SUBNET_MASK=255.0.0.0
rommon 7
> DEFAULT_GATEWAY=20.0.0.2
rommon 8
> TFTP_SERVER=20.0.0.2
rommon 9
> TFTP_FILE=c2600-i-mz.122-28.bin
Step3 Now run the following command
(tftpdnld)
rommon 10
> tftpdnld
when you hit enter, Restoring Process will begin (Output)
IP_ADDRESS:
20.0.0.1
IP_SUBNET_MASK:
255.0.0.0
DEFAULT_GATEWAY:
20.0.0.2
TFTP_SERVER:
20.0.0.1
TFTP_FILE: c2600-i-mz.122-28.bin
Invoke this
command for disaster recovery only.
WARNING: all
existing data in all partitions on flash will be lost!
Do you wish
to continue? y/n: [n]: y
.
Receiving
c2600-i-mz.122-28.bin from 20.0.0.2
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
File
reception completed.
Copying file c2600-i-mz.122-28.bin to flash.
Erasing
flash at 0x60000000
Erasing
flash at 0x60040000
Erasing
flash at 0x60080000
Erasing
flash at 0x600c0000
Erasing flash at 0x60100000
program flash location
0x60520000
program flash location
0x60530000
program flash location
0x60540000
program flash location
0x60550000
rommon 14 >
rommon 14 > reset
System
Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright
(c) 2000 by cisco Systems, Inc.
Cisco 2620
(MPC860) processor (revision 0x200) with 253952K/8192K bytes of memory
Readonly
ROMMON initialized
Self
decompressing the image :
##########################################################################
[OK]
--- System Configuration Dialog ---
Continue
with configuration dialog? [yes/no]:
Continue
with configuration dialog? [yes/no]: no
Step 4 Now Reload the Router
Router>
Router>enable
Router#reload
After Reload
Restoring process successfully
completed, verify by show flash command
Router>enable
Router#show
flash
System flash
directory:
File Length
Name/status
4 5571584 c2600-i-mz.122-28.bin
[5571584
bytes used, 58444800 available, 64016384 total]
63488K bytes
of processor board System flash (Read/Write)
Now everything is done
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