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How to check open ports on my Cisco 2821 router

By derflanoj ·
Hi! How can I check all the open ports on my Cisco 2821 router? How can I open and close a ports? Can someone give me a command I am totaly no experience on Cisco router.

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Cisco 2821 Open ports

by toothache90 In reply to How to check open ports o ...

Hi,

You can use the GUI to check what ports are default open. Simply open a web browser with your IP address of the router, you will then be presented with a login prompt. Login with your admin credentials.

or from CLI (Command Line interface) type "sh ip port-map"

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Cisco 2821 re: ports

by toothache90 In reply to Cisco 2821 Open ports

Sorry my mistake, you can use the GUI only if you have the SDM installed on your computer. This can be downloaded from Cisco.com for free.

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Cisco 2821 Open ports

by irwandhi In reply to How to check open ports o ...

you can use this command "show control-plane host open-ports" to check what port are opened on your router ..

Thanks ..

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Reponse To Answer

by PurpleSkys In reply to Cisco 2821 Open ports

i would hope that they got it by now, it's only been almost 5 years...please, don't wake the dead

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