Cisco IOS Packaging Codes

c3725-ipbasek9-mz.124-25b.bin

C3725	ipbase	K9	M	Z	124	25	b
Platform	Feature Set	Crypto Incl.	Memory Loc.	Compression Format	Maintenance Release	Individual Release	Numbered Version

c3725-ipbase-mz.124-25b.bin

C3725	ipbase		M	Z	124	25	b
Platform	Feature Set	No Crypto Incl.	Memory Loc.	Compression Format	Maintenance Release	Individual Release	Numbered Version

IOS Feature Sets…

· ipbase = Classic IP Data + Trunking and DSL

· ipvoice = Adds Voice to Data (VoIP & VoFR)

· spservices = Adds SP Services to Voice & Data (SSH/SSL, ATM, VoATM, MPLS, etc)

· entbase = Adds multiprotocol services to Data (L3 routed protocols)

· entservices = Enterprise Base and SP Services

· advsecurity = Add Sec/VPN to Data (IOS FW, IPS/IDS, NAC, SSH/SSL, IPSec, etc.)

· advipservices = Advanced Security and SP Services (IPv6)

· adventerprise = Full Cisco IOS software

c3725-adventerprisek9_sna-mz.124-25b.bin

C3725	ipbase	K9	_sna	M	Z	124	25	b
Platform	Feature Set	Crypto Incl.	SNA Switching	Memory Loc.	Compression Format	Maintenance Release	Individual Release	Numbered Version

Feature Set Additions…

· _sna = sna switching

· _ivs = int voice/video, ipip gw, tdmip gw (for ipvoice)

· _ivs = int voice/video, ipip gw, tdmip gw aes (for adventerprise)

· k8 = weak encryption (DES)

· k9 = strong encryption (3DES)

· o3 = Firewall/IDS

· s3 = Basic limited routing/memory for 2600 & 3600 series

· i = IP Routing version

Memory Location & Compression Format…

· f = The image runs from Flash memory

· m = The image runs from RAM

· r = The image runs from ROM

· l = The image runs relocatable

· z = The image is zip compressed

· x = The image is mzip compressed

Deployment Versions…

ED = Early Deployment (Offers new feature, platform, or interface support)

MD = Maintenance Deployment

LD = Limited Deployment (period between first shipment and GD)

GD = General Deployment (Suitable for deployment anywhere in customer networks)

DF = Deferred (known defects, not avail for download, should not be loaded on your router)

A.B(C)D…

A.B = the major release i.e. 12.3 or 12.4

(C) = the maintenance version, higher number means more bug fixes, any bug fix from a previous version is included in the next version

D = if present means it’s not a major release but an extension of one. Usually provide new features and hardware support.

Another good sources:

Basic IT Tips & Tricks for IT Geeks