=== Basic Firewall for End Devices

ifdef::topdoc[:imagesdir: {topdoc}../../test/case/firewall/basic]

==== Description

Firewall configuration suitable for end devices on untrusted networks.

image::basic.svg[align=center, scaledwidth=50%]

- Single zone configuration, "public-untrusted-net", with `action=drop`
- Allowed services: SSH (port 22), DHCPv6-client, mySSH (custom, port 222)
- All other ports (HTTP, HTTPS, Telnet, etc.) blocked
- Check that unused interfaces are automatically assigned to default zone

==== Topology

image::topology.svg[Basic Firewall for End Devices topology, align=center, scaledwidth=75%]

==== Sequence

. Set up topology and attach to target
. Configure basic end-device firewall
. Verify unused interface assigned to default zone
. Verify ICMP is dropped
. Verify ICMPv6 is dropped
. Verify SSH service is allowed
. Verify custom mySSH service is allowed
. Verify HTTP service override (8080 allowed, 80 blocked)
. Verify other ports are blocked