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====== VLAN (IEEE 802.1Q) ======

FreshTomato supports VLAN (Virtual LAN) configurations which conform to the 802.1Q standard. 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 make VLANs work properly on ALL ARM and MIPS router. (See examples below.)


===== VLAN Ethernet (Basic Configuration Information) =====

  * 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 - The VLAN ID assigned to untagged frames that the router receives.
  * Bridge - Determines if this VLAN ID should be treated as WAN, part of a LAN bridge or just left as is (a member of an 802.1Q trunk, being managed manually via scripts, etcetera).


===== VLAN Wireless =====

This section contains the assignments of wireless interfaces to various LAN bridges.

It is highly recommended that you determine and verify the correct settings on the [[:virtual_wireless|Virtual Wireless]] and [[:network|Network]] menus to ensure proper VLAN operation.

The following settings are also mandatory:

  * One VID must be assigned to the WAN interface.
  * One VID must be selected as the default.
  * To prevent 802.1Q compatibility issues, avoid using VID: "0" . 802.1Q specifies that frames with tag: "0" do not belong to any VLAN (the tag contains only user priority details).  \\ [[https://en.wikipedia.org/wiki/IEEE_802.1Q|Wikipedia: 802.11Q]]
  * Avoid using VID: "1" . Some vendors label it as "special" or "reserved" for management purposes.

\\   \\ **Configuration example for German Telekom ISP**

Europe's biggest telecom company supports a dual-stack setup (IPv4 & IPv6). For the WAN Port a VLAN tag is required with a value of 7 (VID 7).

{{:telekom_example_vid_7.png?600}}


===== VLAN Notes =====

As mentioned above, for VLANs to function properly, please** use FreshTomato 2021.8 or newer**. All older versions, (including Shibby/Toastman/AdvancedTomato) may not work as expected (see following examples).

=== PPPoE Connections with FreshTomato 2021.7 and older ===

PPPoE connections work only when the following workaround is implemented:

//Example 1//: You are using FreshTomato 2021.7 to connect to German Telekom ISP. \\ German Telekom uses PPPoE with VID: "7". \\  => you must use VLAN: "7" using VID: "7"  (a "traditional" VLAN/VID mapping).

 \\ //Example 2//: You are using FreshTomato 2021.7 to connect to Freedom internet. \\ Freedom uses PPPoE , and 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//: You are using FT 2021.7 to connect to Vivo FTTH (Brazil). \\ (Vivo use PPPoE, and 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)
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