How do I restrict access to certain ports?

[brandondaly]

I would like to restrict the traffic through my router so that only one IP address can use port 8080, with all other port available to the entire subnet. Is this possible on a 3640 router, and how do I configure it?

 

[Saeed42]

Use extended access list to permit only one IP to go through to the server on port 8080, that will by default deny everyone else

access-list 101 permit tcp host 12.12.12.12 eq 8080 any
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