IOS Version

Still trying to learn and get down how to read/understand cisco image files, what would be the newest image file(IOS) that i could install or need on the following routers that would provide the best features for studying for the ccna/ccnp:

2620xm
2620
2621

Find more posts tagged with

SAVE $250 on Your CISCO Boot Camp — Use Code "EXAM26"

Exclusively for TechExams members for Infosec Boot Camps starting before April 30, 2026

View CISCO Boot Camps

Comments

networker050184

The Cisco Feature Navigator should answer all of your questions.

brewoz40

This is what I have found and just want to confirm, would this be correct and recommended IOS for the following:

For the 2620xm
12.4(15)T13
c2600-ik9o3s3-mz.123-26.bin
IP/FW/IDS PLUS IPSEC 3DES BASIC
64mb/16mb flash

For the 2620 and 2621:
12.3.26(GD)
c2600-adventerprisek9-mz124-15.TB.bin
256mb/48mb flash

networker050184

Look through the exam blue prints for the exams you want to go for and match that off the features listed in the navigator. You will also want to check the memory requirement matches your router.

I usually go with an advanced IP services feature set for the lab. That will have most of your features covered.

tech-airman

brewoz40 wrote: »

Still trying to learn and get down how to read/understand cisco image files, what would be the newest image file(IOS) that i could install or need on the following routers that would provide the best features for studying for the ccna/ccnp:

2620xm
2620
2621

brewoz40,

How much RAM do you have on those routers?

wbosher

The one I use on all of my routers (2620, 2620xm and 2612) is IP PLUS - c2600-is-mz.122-46a.bin (version 12.2.46(GD)). It needs DRAM:48 MB Flash:16 MB

I've never had any problems with any CCNA requirements using this IOS. You don't need to go overboard for CCNA.