> Hi all, > As a beginner, i am setting up home lab. Can anyone give me the detail > procedure of how to upgrade the IOS of C2521.
I'm assuming you have the console connection to the routers. I'm also assuming you have either learned to clear the passwords, or that you have enable (priveleged EXEC) access to the routers because you know the passwords. So from priveleged EXEC mode (the prompt that looks like Router#, not Router>) 1. use the s0 or s1 serial interface of the 2521 to connect to the 2503. (those are the high-speed serial interfaces) 2. set the clock rate to 4000000 (the clock rate will be set on the router with the DCE cable connected) - example configure terminal interface serial0 clock rate 4000000 no shutdown ^z (control-z. typing end also takes you out of configuration mode) 3. set an IP address on both serial interfaces to be in the same subnet, and enable the ethernet interface - example on the 2521 - config t interface serial 0 ip address 192.168.1.1 255.255.255.0 end on the 2503 - config t interface serial 0 ip address 192.168.1.2 255.255.255.0 no shut int e0 ip addr 192.168.2.1 255.255.255.0 no shut ^z 4. create a default route on the 2521 to the serial interface of the 2503 - example ip route 0.0.0.0 0.0.0.0 192.168.1.2 5. ping the 2503 ethernet interface from the 2521 to verify connectivity - example, if the ethernet were set to 192.168.2.1 ping 192.168.2.1 6. save the configuration on the 2521 wr mem (or copy run start) 7. depending on where the IOS image resides, you want to start up the tftp server on your PC, or set up your 2503 as a tftp server (if you want to use the image that resides on the 2503) - example on the 2503 - show flash (a filename will be displayed - perhaps something like c2500-d-l.120-9.bin) conf t tftp-server c2500-d-l.120-9.bin ^z 8. on the 2521, copy tftp flash at the prompt for the ip address, either use the ip address of the PC running the tftp software (it should be a 192.168.2.x address) or the serial interface of the 2503 if you're copying that image at the prompt for the source filename, use the filename that you used above - in this example, c2500-d-l.120-9.bin at the prompt for the destination filename, press enter for all the other prompts, press enter or y then watch the flash get erased on the 2521 and then watch the tftp transfer process with all of the exclamation points (!) When the image is finished tranferring, the 2521 will reload, because it runs its operating system from flash memory. Good luck, and have fun -e- > I got no problem with my C2503 because it has a Ethernet port for me to > connect the PC to it. > > Kenneth _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23510&t=23498 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

