Upgrading Cisco 3640

[NileshB]

Morning!

I've been tasked to upgrade a Cisco 3640 running c3640-jk8o3s-mz.122-26.bin... Looking on Cisco's website, I can't find this release. I can only find c3640-ik9o3s-mz.124-25d.bin

I'm aware that the jk8o3s runs ENTERPRISE/FW/IDS PLUS IPSEC 56
and
that the ik9o3s runs IP/FW/IDS PLUS IPSEC 3DES

I've tried to use Cisco's Feature Navigator tool there are features that are unique to both. Obviously the newer image has a lot more feathers that the older one.

I don't think the router is actually using a lot of the features but cannot be sure.

Can anybody help in determining whether the ik903s image will run on the code that's on the router...

Thanks in advanced!

 

[vipergg]

The router will run the code "IF" the router has enough nvram to accept the 12.4 image which will be considerably bigger .