upgrading IOS help

[mike160]

OK... so I finally got around to getting a tranciever for one of my 2501s. On both routers I have cisco IGS software (I think its for frame relay stuff)on both routers (one has a corupt flash image).

I have a copy of the 2500 IOS on my PC. I have already tried to upgrade the IOS using xmodem/serial connection <--- it doesn't work on these routers.

so I now have the 2501 connected to my cheap linksys router, which is using DHCP. I've managed to get the eth 0 interface "UP", but the 2501 doesnt seem to get an IP address from the linksys. The "service DHCP" command is NOT recognized by the 2501.

All I want to do is upgrade the IOS... but I'm getting the feeling the 2 routers I have are just 19" paperweights.

these aren't core routers or anything like that, I don't even see how they were connected and functioning in a "real" network enviroment, maybe thats why they were FREE


I know I have to set up a tftp server on my local machine, but I would assume the router would have to have an IP address first.

any help would be great

thanks

Mike

 

[wiimike]

Set them to have an IP address. like go into the router by using like hyper terminal.

ena
config t
int ethernet (or fastethernet) 0 (or whichever you're connecting to)
ip address 1.1.1.1
no shutdown


then plug your comp to that port, then play with the instructions for loading the IOS through a tftp program like solar winds.

 

[burtsbees]

Sounds like you have a base IP IOS image, something like C2500-i-mz-whatever the version is. The
router(config)#ip add dhcp
command is not supported on this with only the base IP code. Your choices are to set the Linksys router to NOT DHCP addresses out, give the interface a static address, and the router a static address as well...or, connect the router to the PC directly via crossover cable, and set the IP address in the PC and the router in the same subnet.

Burt

 

[wiimike]

on the ip address, I forgot to add a subnet mask, but I bet you knew that.


so like "ip address 1.1.1.1 255.0.0.0

 

[burtsbees]

Hey, wiimike---we must be on at the same time...ha ha. What a trip.

Burt

 

[mike160]

good tips ... i'll give those try and let you guys know how it turns out.

 

[mike160]

thanks guys
wiimike that was the prob, i forgot to add the subnet as well and the old router config was using a different class subnet so I couldn't "see" it from the router.

all set now, i've got the 2500 IOS up and running on one router, ive backed up the "dumbed down" IGS image on the router that acctually had a working image.

Now my only dilemma is there isn't enough flash mem to support the 2500 IOS on one of these routers. (only has 4MB)
the other router that had the corupt image has 8MB.

my plan is to get a 2514 and a switch, that should give me everything I need at the moment to do some experimenting.

 

[wiimike]

Glad it worked for you. Ouch on the 4Mb, is that total or because you currently have one in flash? If it's the second you can just erase your flash before transferring the new IOS. But be careful not to lose power after erasing flash, rebooting with NO IOS is a way bigger pain in the arse.

Haha, yeah, was same time Burt, =)

 

[Minue]

Hello Mike160
Be advice that if you get a Switch you will need a better router than 2514 to do the intervlan-routing labs.
Also the 4MB flash of 2500 will support the 11.2 as the highest image.
Good luck

 

[mike160]

minue, I am starting off slow, as my funds are limited. When I get to the point of setting up a home lab designed for the CCNA exam will I need a switch ??

The 2514s just seemed like a good choice. They're inexpensive and I believe you can set a 2514 for NAT, that way I could actually implement the cisco set-up into my current DSL internet connection.
feel free to correct me if I am wrong

I appreciate all the help thus far

later

Mike

 

[Minue]

Hello
Well the switch in my opinion is needed.But I must say in the end it's a personal choice.Many people pass the CCNA exam without investing in Routers and Switches.But it's important to get the feel of devices,if you plan on getting a job in the Industry.My first contract as a CCNA was to setup some Switches,and I am going to tell you,if I didn't had some hands on.I would have been a big embarrassment.
The CCNA curriculum has about 7 labs with the switches.But in the exam you will get a few question on VTP,VLAN trunking and Intervlan-routing.Maybe you can get buy without doing the real labs.So it's your call.
For the NAT with the 2514 you will need at least two ethernet interfaces.Also NAT requires a lot of DRAM.I am doing NAT with a 1605.I started with 16MB dram,but had to upgrade to 24MB.
Regards

 

[burtsbees]

I actually passed the CCNA and all four CCNP exams BEFORE I ever bought any equipment! I used books and Boson sim...my mom told me that when I was born, I came out backwards...lol.

Burt