Buy or Renew
Buy or Renew
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
cancel
Start a conversation

Who Me Too'd this topic

deny all traffic to 53 from outside

ilukeberry
Level 1
Level 1

‎10-05-2012 08:29 AM - edited ‎03-11-2019 05:05 PM

Hi

I've setup Cisco router's DNS server... via "ip dns server" which in need for inside use.. however now if I do portscan from outside it shows port 53 opened. How do I block all traffic to that 53 port from outside since i need this DNS only inside my NAT/Overload network.

I'm using 1900 series.

2 people had this problem
Labels:
0 Helpful
Who Me Too'd this topic