04-17-2019 07:58 AM
Hello, is it possible with palo alto firewall to deny internet traffic for a specific subnet?
let's say I have this subnet: 10.100.30.0/24
I want 10.100.30.0/24 to not reach the internet.
What should I do?
04-17-2019 08:14 AM - edited 04-17-2019 08:15 AM
Hello,
Just make sure to put in a deny policy prior to your allow internet policy.
The PAN just like every other FW reads top down left to right for policies, once it matches the action in the policy is taken, e.g. allow or deny.
i.e.
'deny internet for subnet' source IP 10.100.30.0/24 destination zone untrust action deny
'allow internet' source zone trust destination zone untrust action allow
That is highly simplified and follow best practices on URL and threat filtering including ssl decryption.
Hope that helps.
04-17-2019 08:14 AM - edited 04-17-2019 08:15 AM
Hello,
Just make sure to put in a deny policy prior to your allow internet policy.
The PAN just like every other FW reads top down left to right for policies, once it matches the action in the policy is taken, e.g. allow or deny.
i.e.
'deny internet for subnet' source IP 10.100.30.0/24 destination zone untrust action deny
'allow internet' source zone trust destination zone untrust action allow
That is highly simplified and follow best practices on URL and threat filtering including ssl decryption.
Hope that helps.
04-17-2019 08:18 AM
Some general help about setting up basic security policies you can find here: https://docs.paloaltonetworks.com/pan-os/9-0/pan-os-admin/getting-started/set-up-a-basic-security-po...
Click Accept as Solution to acknowledge that the answer to your question has been provided.
The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!
These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!
The LIVEcommunity thanks you for your participation!
