Setup guide

Summary
VLAN is an implementation of the 802.1Q VLAN protocol for Wandy RouterOS 2.7. It allows
you to have multiple Virtual LANs on a single ethernet cable, giving the ability to segregate LANs
efficiently. It supports up to 250 vlan interfaces per ethernet device. Many routers, including Cisco
and Linux based, and many Layer 2 switches also support it.
A VLAN is a logical grouping that allows end users to communicate as if they were physically
connected to a single isolated LAN, independent of the physical configuration of the network.
VLAN support adds a new dimension of security and cost savings permitting the sharing of a
physical network while logically maintaining separation among unrelated users.
Specifications
Packages required: system
License required: level1 (limited to 1 vlan), level3
interface vlan
Standards and Technologies: VLAN (IEEE 802.1Q)
Hardware usage: Not significant
Related Documents
• Package Management
• IP Addresses and ARP
Description
VLANs are simply a way of grouping a set of switch ports together so that they form a logical
network, separate from any other such group. Within a single switch this is straightforward local
configuration. When the VLAN extends over more than one switch, the inter-switch links have to
become trunks, on which packets are tagged to indicate which VLAN they belong to.
You can use Wandy RouterOS (as well as Cisco IOS and Linux) to mark these packets as well as
to accept and route marked ones.
As VLAN works on OSI Layer 2, it can be used just as any other network interface without any
restrictions. And VLAN successfully passes through Ethernet bridges (for Wandy RouterOS
bridges you should set forward-protocols to ip, arp and other; for other bridges there should be
analogical settings).
Currently Supported Interfaces
This is a list of network interfaces on which VLAN was tested and worked:
• Realtek 8139
• Intel PRO/100
• Intel PRO1000 server adapter
This is a list of network interfaces on which VLAN was tested and worked, but WITHOUT
LARGE PACKET (>1496 bytes) SUPPORT:
• 3Com 3c59x PCI
• DEC 21140 (tulip)