OpenWRT routers: Difference between revisions

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== VLANs ==

It's easy for new OpenWrt users to get confused by VLANs. On some routers the WAN and LAN are configured as separate VLANs on one Ethernet. So you can see the LAN defined as ''eth0.1'' and the WAN as ''eth0.2''

It's easy for new OpenWrt users to get confused by VLANs. On some routers the WAN and LAN are configured as separate VLANs on one Ethernet. So you can see the LAN defined as ''eth0.1'' and the WAN as ''eth0.2'' (where the number after the dot is the VLAN id number).

A recent change to OpenWrt has affected configuration of the network switch, so there are two possible ways the switch is configured.

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Then the PPPoE instance on the WAN may need to be configured to be on a VLAN because of the carrier's requirements, but this VLAN is separate from the router hardware configuration.

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Then the PPPoE instance on the WAN may need to be configured to be run over a VLAN because of the carrier's requirements, but this VLAN my be separate from the router hardware configuration.

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For ~~CityFibre~~ connections, a VLAN ID of ~~911~~ is needed.

For ~~VDSL~~ connections, a VLAN ID of ~~101~~ is needed.

For CityFibre FTTP connections, a WAN VLAN ID of 911 is needed.

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For VDSL connections, a WAN VLAN ID of 101 is needed.

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Openreach FTTP does not need a VLAN.

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Openreach FTTP does not need a WAN VLAN.

ADSL users need an ADSL modem. OpenWrt doesn't support many of the modems built into normal consumer ADSL router/modems. If using an external modem then no VLAN is needed.