FreshTomato supports VLAN (Virtual LAN) configurations. The user can create up to 16 VLANs. A VLAN can use a VID between 1 and 4094.
Please use FreshTomato 2021.8 and newer to have VLAN working properly for ALL ARM and MIPS router. (See examples below.)

• VLAN - The VLAN's unique identifier. (VLAN 0 to VLAN 15)
• VID - Allows overriding “traditional” VLAN / VID mapping (Example: VLAN 4 to VID 4) with arbitrary VIDs for each VLAN (set to “0” to use “regular” VLAN/VID mappings instead).
• Ports 1 - 4 & WAN - Specifies which Ethernet ports on the router should be members of this VLAN.
• Tagged - Enable 802.1Q tagging of Ethernet frames on a particular port/VLAN.
• Default - VLAN ID assigned to untagged frames the router receives.
• Bridge - Determines if this VLAN ID should be treated as WAN, part of a LAN bridge or just left alone (i.e. a member of an 802.1Q trunk, being managed manually via scripts, etcetera).

Wireless - The assignments of wireless interfaces to different LAN briges. You should probably use and/or check settings on the Virtual Wireless and Network menus.

Other relevant notes/hints:

• One VID must be assigned to WAN.
• One VID must be selected as the default.
• To prevent 802.1Q compatibility issues, avoid using VID “0” as 802.1Q specifies that frames with a tag of “0” do not belong to any VLAN (the tag contains only user priority information).
• It may be also recommended to avoid using VID “1” as some vendors consider it special/reserved (for management purposes).

Configuration example for German Telekom ISP

Europe's biggest telecommunications company supports a dual-stack setup (IPv4 & IPv6) and for the WAN Port you need a VLAN tag with the value of 7 (VID 7).

IMPORTANT NOTE: Like already mentioned - please use FreshTomato 2021.8 and newer to have VLAN working properly.

All “older” versions (including shibby/toastman/AdvancedTomato/etc.) may not work like expected. PPPoE connection is only possible with the following “workaround”.

Example 1: If you are using FT 2021.7 to connect to German Telekom ISP (needs PPPoE with VID 7) ⇒ you have to use VLAN 7 using VID 7 (“traditional” VLAN/VID mapping)

Example 2: If you are using FT 2021.7 to connect to Freedom internet (https://freedom.nl needs PPPoE, only possible with VLAN 6 using VID 6) see https://www.linksysinfo.org/index.php?threads/fork-freshtomato-arm-development-discussion-only-for-support-always-open-your-own-thread.74117/page-245#post-330148

Example 3: If you are using FT 2021.7 to connect to Vivo FTTH (Brazil) (needs PPPoE, only possible with VLAN 10 using VID 10) see https://www.linksysinfo.org/index.php?threads/fresh-tomato-r7000-vlan-issue-on-ftth-provider.76958/#post-330955

Starting with release 2021.8, you can select or use any VLAN 0 to 15 (see picture above for example 1 (Telekom ISP), now using VLAN 5 with VID 7)