Implicit policy of ACL

alishayan Lv1Posted 30 Apr 2024 13:03

Hi - What is the implicit policy for NGAF 8.0.47 either "permit any any" or "deny any any" on firewall ?

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The purpose of setting a policy to Deny Any is to block all unwanted traffic that passes the Firewall, it's a best practice of the Firewall. The NGAF's default policy are set to Deny Any Any, users must configure a policy that allows necessary traffic through the NGAF to ensure all approved traffic is permitted.

The matching mechanism of the NGAF's Application Control Policy is from Top to Bottom, normally allowing policies to be on top and the Default Policy at on bottom.
Is this answer helpful?
Newbie517762 Lv5Posted 30 Apr 2024 14:31
  
HiHi,

As far as I know, the firewall follows a top-down approach when prioritizing policies. To block or deny specific elements, position them at the top & consider that the default policy already allows all traffic.
Enrico Vanzetto Lv4Posted 30 Apr 2024 18:33
  
Hi, the purpose to set a policy deny any is to catch all traffic that you want to block (unwanted traffic) and log it. This policy must stand down all the other policies that permit the traffic you wnat to allow. The policy allow all i use only for test purpose, as i recommed to create specific firewall rules to match properly the allowed traffic.
Johnbada Lv2Posted 03 May 2024 12:20
  
Best Practice is implicit deny, the advantages is you can added an object and services/apps then allow them using specific permission but you must remember the firewall read the policy from top to bottom.
Seroo Lv1Posted 07 May 2024 10:37
  
This means that by default, if there are no explicit firewall rules defined to permit traffic, all traffic is denied. This ensures a default stance of security where traffic must be explicitly allowed by firewall rules to pass through the firewall.
Tammee Ong Lv1Posted 07 May 2024 12:15
  
The purpose of setting a policy to Deny Any is to block all unwanted traffic that passes the Firewall, it's a best practice of the Firewall. The NGAF's default policy are set to Deny Any Any, users must configure a policy that allows necessary traffic through the NGAF to ensure all approved traffic is permitted.

The matching mechanism of the NGAF's Application Control Policy is from Top to Bottom, normally allowing policies to be on top and the Default Policy at on bottom.
Farina Ahmed Lv5Posted 07 May 2024 14:08
  
The implicit policy for NGAF 8.0.47 is "deny any any." This means that by default, all traffic is blocked unless explicitly allowed.
Imran Tahir Lv4Posted 07 May 2024 14:33
  
By default no rule is applied , all traffice are in deny mode . we create the rules as per requirement.
Zonger Lv5Posted 07 May 2024 15:58
  
The implicit policy for NGAF 8.0.47 firewall is typically "deny any any." This means that by default, all traffic is blocked unless explicitly permitted by firewall rules. This approach enhances security by preventing unauthorized access, but requires administrators to configure specific allowances for desired traffic to flow through the firewall.
ArsalanAli Lv3Posted 07 May 2024 16:19
  
Implicit policy of all version on NGAF is "Deny ALL-> Source ANY -> Destination ANY"

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