Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Blocking ports

Is it possible to block certain ports? Such as TCP ports 49000-49999? I know you can block 0-255, but I need to shutdown some ports for internet radio. It is killing our bandwidth.

Thanks!

1 REPLY
Cisco Employee

Re: Blocking ports

On what type of platform do you want to do that. On a router, you can always create extended access-lists denying those ports and apply that access-list on the relevant ports.

E.g.:

access-list 101 deny tcp any any range 49000 49999

access-list 101 permit ip any any

interface fast-ethernet 0/1

ip access-group 101 in

91
Views
0
Helpful
1
Replies
CreatePlease to create content