No console input on some releases of 12.3 on 1401


depending on the installed version of IOS, I cannot enter anything into the console while output is not impaired. The cable is fine and the problem is not present until I boot IOS up (e.g. I can enter rommon). This happens on a Cisco 1401 with 24MB RAM and 20/16MB Flash.

The following releases are affected: 12.3(12c), 12.3(15), 12.3(15a),

12.3(13b) while 12.3(3h), 12.3(10d), 12.3(3i) and 12.3(6f) are not.

Is this a bug in IOS or am I missing something?

Thanks Philipp

PS. my config: version 12.3 no service pad service timestamps debug uptime service timestamps log uptime service password-encryption ! hostname Test ! boot-start-marker boot system flash:1:/c1400-nosy-mz.123-6f.bin boot-end-marker ! enable secret 5 xxx ! clock timezone MET 1 clock summer-time MST recurring last Sun Mar 2:00 last Sun Oct 3:00 no aaa new-model ip subnet-zero no ip domain lookup ! partition flash 2 8 8 ! interface Ethernet0 ip address xxx no ip route-cache ! interface ATM0 no ip address no atm ilmi-keepalive ! interface ATM0.1 point-to-point ip address xxx pvc 1/32 encapsulation aal5snap ! ! ip classless ip route xxx no ip http server ! line con 0 line vty 0 4 exec-timeout 0 0 password 7 xxx login ! sntp server xxx end

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Philipp Brenner
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