[OpenWrt Wiki] Internal Layout D-Link DIR-825
openwrt.org › docs › techrefFeb 20, 2018 · This article describes the internal layout and configuration of the D-Link DIR-825. This particular hardware has two physical network interfaces, eth0 and eth1, whereas most emebedded devices have only one: eth0. It also has two two wireless network interfaces using the IEEE 802.11 protocol, represented by wlan0 and wlan1 . iface. Port.
[OpenWrt Wiki] Switch documentation
openwrt.org › docs › guide-userAug 02, 2021 · The TP-Link Archer C7 has eth0 = WAN, and eth1 = LAN (the 4 switch ports). Port 0 of the switch = eth1 (labelled CPU in Luci), Port 6 = eth0. Port 1 is labelled WAN in Luci. Look at the wiki for your router. Every router is different. The popular TP-Link WDR4300 only has eth0.
[OpenWrt Wiki] Linux Network Interfaces
openwrt.org › docs › guide-developerip link add link eth0 eth0.1000 type vlan proto 802.1ad id 1000 ip link add link eth0.1000 eth0.1000.1000 type vlan proto 802.1q id 1000 bridges : br0 , br-lan are used to make multiple virtual or physical network interfaces act as if they were just one network interface (quasi the opposite of VLANs).