networking - Openwrt br-lan issue - Super User
superuser.com › questions › 636205Aug 23, 2013 · 1 You can think of eth1 as one physical interface on you router which is connected (hardwired to the switch), which includes all your Ethernet LAN ports (4 in most home routers). Now br-lan is logical interface between eth1 and that switch. It is configured by default in OpenWRT (which oddly isn't in your case).
[OpenWrt Wiki] VLAN
openwrt.org › docs › guide-userNov 05, 2021 · To use a VLAN you need at least 2 devices supporting VLAN features (as any route requires at least 2 points), which is usually advanced routers, any OpenWrt device, and any self-respecting PC or single-board computer (Windows, MacOS, Linux and BSDs support VLANs). OpenWrt supports IEEE 802.1Q and IEEE 802.1ad VLAN standards.
[OpenWrt Wiki] Network basics /etc/config/network
openwrt.org › docs › guide-userThe default OpenWrt network stack of a typical home router looks like this: Your device may vary slightly in features or numbering scheme. A minimal network configuration for a router usually consists of at least two interfaces ( lan and wan) and their associated devices ( br-lan and eth0 ), as well as a switch section if applicable.
[OpenWrt Wiki] Routed Client
openwrt.org › docs › guide-userJul 23, 2021 · Network Routed Client Routed Client In the default configuration, OpenWrt bridges the wireless network to the LAN of the device. Most wireless drivers do not support bridging in client mode, therefore the traffic between LAN and the wireless client must be routed. Using MASQUERADE