Solved: Cisco Smart Install, opens up TCP port 4786, want it disabled

cwallin · ‎03-02-2010

Hello, I have upgraded a couple of 2960G switches to 12.2.52SE and now discovered that TCP port 4786 is open on the switches.

I have looked in the document http://www.cisco.com/en/US/docs/switches/lan/smart_install/release_12.2_52_se/configuration/guide/smart_install.html trying to find a way to disable this function/port, but didnt find anything usefull.

Have anyone found a way to disable this function/port?

BR /Christian

Kevin Morales · ‎05-01-2013

Hello, In version 15.0(2)SE2 aplly this command:

config t

no vstack

Sw01#sh vstack config

Role: Client (SmartInstall disabled)

Vstack Director IP address: 0.0.0.0

*** Following configurations will be effective only on director ***

Vstack default management vlan: 1

Vstack start-up management vlan: 1

Vstack management Vlans: none

Join Window Details:

Window: Open (default)

Operation Mode: auto (default)

Vstack Backup Details:

Mode: On (default)

Repository:

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Ganesh Hariharan · ‎03-02-2010

Hello, I have upgraded a couple of 2960G switches to 12.2.52SE and now discovered that TCP port 4786 is open on the switches.

I have looked in the document http://www.cisco.com/en/US/docs/switches/lan/smart_install/release_12.2_52_se/configuration/guide/smart_install.html trying to find a way to disable this function/port, but didnt find anything usefull.

Have anyone found a way to disable this function/port?

BR /Christian

Hi BR,

As per the IANA the following TCP port 4786 is reserved for Smart Install Service,check out the below link for more information.

http://www.iana.org/assignments/port-numbers

Hope to Help !!

Ganesh.H

ankugarg · ‎06-09-2011

Hi,

Starting with IOS version.12.2(58)SE,there is a way to close port 4786.See the latest docs for more details.

Thanks,

Ankur

Kevin Morales · ‎05-01-2013