IOS Naming
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Cisco IOS image naming conventions
New method
Old method
cxxxx-yyyyy-mw.aab-c.dd.bin
Example: c805-y6-mw.122-8.T4.bin
xxxx = Model number (ex: Cisco 805 serial router)
yyyy = Feature set
y IP feature set s Plus o Firewall feature set kx Cryptography / IPSEC, x = version number n IPX feature set ----------------------- y6 IP sy6 IP Plus oy6 IP/FW (FW=Firewall) osy6 IP/FW Plus k8osy6 IP/FW Plus IPSEC 56 nsy6 IP/IPX Plus k8nosy6 IP/IPX/FW Plus IPSEC 56
mw = Location (ex: Main memory, ??)
aa = Major version number (ex: 12)
b = Minor version number (ex: 2)
c = Release number (ex: 8)
dd = Type or train (ex: New technology train, release 4)