device - List of raw network device names attached to this zone, e.g. ppp+ to match any PPP interface.
What I find confusing:
device vs. interface in the same sentence and appearing sort of conflicting
- how can ppp+ be considered a raw device at all, e.g. considering  stipulating
pppoe-$interface as interface but there is no
I would have thought that a raw netdev is a physical port, such as ethX or lanX, probably also radioX.
Thus appreciate to learn what counts as raw netdev and what defines it in the OpenWrt context/lingo.
I've noticed that these terms are not always consistent across pages. The network config page uses the terms "[OpenWrt] logical interface" and "physical interface":
Sections of the type
interface declare logical networks serving as containers for IP address settings, aliases, routes, physical interface names and startfirewall_rules - they play a central role within the LEDE configuration concept.
From the Wiki page, "interface" clearly describes an OpenWrt-enumerated config defining one logical network. An interface can include multiple physical interfaces.
In your instance, I think "raw" should be replaced with "physical interface". Also note that
network is commonly used in zone definitions (which lists the logical interfaces), not
device (which lists the physical interfaces).
And how does that jibe with
e.g. ppp+ to match any PPP interface.
Iptables supports a special
+ placeholder syntax for
ppp+ will match any Linux network device (the things you see in
ip link) starting with
source code does not seem to define PPP+ as netdev and it would appear that nftables does not either.
PPP+ isn't a netdev, it is a wildcard pattern matching things like
pppfoo etc. which are netdevs.
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