SonicOS 7 Match Objects

Security Types

The security type of a zone depend on the device.

Each zone has a security type, which defines the level of trust given to that zone:

Trusted Provides the highest level of trust—meaning that the least amount of scrutiny is applied to traffic coming from trusted zones. Trusted security can be thought of as being on the LAN (protected) side of the Security Appliance. The LAN zone is always Trusted.
Management Unique to the MGMT zone and MGMT interface and also provides the highest level of trust.
Encrypted Used exclusively by the VPN and SSLVPN zones. All traffic to and from an Encrypted zone is encrypted.
Wireless Applied to the WLAN zone or any zone where the only interface to the network consists of SonicWall SonicPoint and SonicWave devices. Wireless security type is designed specifically for use with SonicPoints and SonicWaves. Placing an interface in a Wireless zone activates SDP (SonicWall Discovery Protocol) and SSPP (SonicWall Simple Provisioning Protocol) on that interface for automatic discovery and provisioning of SonicPoints and SonicWaves. Only traffic that passes through a SonicPoint or SonicWaveis allowed through a Wireless zone; all other traffic is dropped.
Public Offers a higher level of trust than an Untrusted zone, but a lower level of trust than a Trusted zone. Public zones can be thought of as being a secure area between the LAN (protected) side of the Security Appliance and the WAN (unprotected) side. The DMZ, for example, is a Public zone because traffic flows from it to both the LAN and the WAN. By default, traffic from DMZ to LAN is denied, but traffic from LAN to ANY is allowed. This means only LAN-initiated connections have traffic between DMZ and LAN. The DMZ only has default access to the WAN, not the LAN.
Untrusted Represents the lowest level of trust. It is used by both the WAN and the virtual Multicast zone. An Untrusted zone can be thought of as being on the WAN (unprotected) side of the Security Appliance. By default, traffic from Untrusted zones is not permitted to enter any other zone type without explicit rules, but traffic from every other zone type is permitted to Untrusted zones.

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