Firewall Subnet

AXISHK
AXISHK used Ask the Experts™
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I find a firewall subnet defined in NAT polices but I can't find any definition of firewalled subnets under Address Object. It seems that it is a default group in Sonicwall.

How does a network subnet be assigned to firewalled subnets ?  

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Last Knight
Distinguished Expert 2018
Commented:
Hi AXISHK,

Firewalled Subnets are literally every subnet behind the firewall. By default that would typically be LAN, DMZ and WLAN if you have a Wireless device. When you add more VLANs/subnets such as LAN2, WLAN12, etc. they will all be auto-added to the Address Object Firewalled Subnets. Do not attempt to modify Firewalled Subnets nor any default Address or Service Object. If they don't exist or you are looking for something that is not found in the Default Objects just create new ones.

Click on the radio dot next to Custom Policies within the NAT Policy page...this will show you what you've created. Don't worry about default NAT policies these are auto-created by SonicWALL to handle traffic accordingly. There is no need to change them.

The best most comprehensive way to open ports etc. is via the Wizards link > Public Wizard. This will guide you and setup the needed Access Rules, NAT Policies, Address & Service Objects for what you are trying to do. If you find the Wizard to limiting just use it regardless to establish the baseline and then modify what you need to after the fact.

Make sense?
Blue Street TechLast Knight
Distinguished Expert 2018

Commented:
I updated my last comment...please refresh and re-ready. thanks!

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