Security Zones and Interfaces
A security zone is a collection of one or more network segments requiring the regulation of inbound and outbound traffic through policies. Security zones are logical entities to which one or more interfaces are bound. You can define multiple security zones, the exact number of which you determine based on your network needs.
set interfaces et-1/0/1 unit 0 family inet address 203.0.113.1/24 set interfaces et-1/0/1 unit 0 family inet6 address 2001:db8:1::1/64 set security zones security-zone ABC interfaces et-1/0/1.0 set security zones security-zone ABC host-inbound-traffic system-services ping set security zones security-zone ABC host-inbound-traffic system-services ssh set security zones security-zone ABC host-inbound-traffic system-services https set security zones security-zone ABC host-inbound-traffic system-services dhcp set security zones security-zone ABC host-inbound-traffic protocols all
On SRX4700 Firewalls, you can configure up to 2000 interfaces within a security zone, but this capacity might vary depending on the version of Junos OS you are using. Check the release notes or documentation for your specific Junos OS version to confirm this limit, as there might be updates or variations in the maximum number of interfaces supported. If you're planning to configure a large number of interfaces, ensure you're using a compatible Junos OS version to support your requirements.
[See Security Zones]