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HTTP/HTTPS problems 3750X



when i try to use web iterface on 3750 stack it go in stuck (see attached screenshot)


i tried different browser all have the same problem

https and http has the same behaviour so i suspect problem doesn't depend to certificates or security misconfguration

ip http server and http secure server are enabled with local authentication and without ACL

sw-ced.71#sh ip http server status

HTTP server status: Disabled

HTTP server port: 80

HTTP server authentication method: local

HTTP server access class: 0

HTTP server base path: flash:/c3750e-universalk9-mz.122-55.SE5/html

HTTP server help root:

Maximum number of concurrent server connections allowed: 16

Server idle time-out: 180 seconds

Server life time-out: 180 seconds

Maximum number of requests allowed on a connection: 25

HTTP server active session modules: ALL

HTTP secure server capability: Present

HTTP secure server status: Enabled

HTTP secure server port: 443

HTTP secure server ciphersuite: 3des-ede-cbc-sha des-cbc-sha rc4-128-md5 rc4-128-sha

HTTP secure server client authentication: Disabled

HTTP secure server trustpoint:

HTTP secure server active session modules: ALL


in attach the output of

dir /recursive flash:

some hints ?

thank you !

3 Replies 3

paul driver
VIP Expert VIP Expert
VIP Expert


sw-ced.71#sh ip http server status
HTTP server status: Disabled

Conf t
Ip http server.

Also you have secure http configured so you need to connect via port 443 https


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.. you are absolutely right ... when a i saw that https and http suffered the same issues i disabled http for security reasons .. now only https is enabled ... but if you are some suggestions i can try https or http only inserting "ip http server enable" configuratin command.


It appears odd that even though you are running an image that support strong crypto ("k9")  that your ciphersuite is only weak ciphers:

3des-ede-cbc-sha des-cbc-sha rc4-128-md5 rc4-128-sha

I checked one of my 3750X stacks and the same output line indicates

HTTP secure server ciphersuite:  3des-ede-cbc-sha des-cbc-sha rc4-128-md5

        rc4-128-sha aes-128-cbc-sha aes-256-cbc-sha dhe-aes-128-cbc-sha


Perhaps you can clear the self-signed certificate and rsa keys and regenerate a new self-signed certificate after you create a new strong RSA key (at least 1024 bits).

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