IEEE 802.1Q – VLAN Tagging and Trunking in Networking
IEEE 802.1Q is the networking standard that defines VLAN (Virtual Local Area Network) tagging on Ethernet frames. VLANs allow network administrators to segment a physical network into …
VLAN1 and VLAN Hopping Attack - Cisco Learning Network
The target machine would receive and process the frame, and that would make the VLAN Hopping Attack successful. Let’s take an example assuming an attacker is connected to switch …
What is the Native VLAN used for? - Cisco Learning Network
On an 802.1q trunk, there is one VLAN that can be untagged. This is called the native VLAN. The switches on both sides of the trunk understand that any frames that are not tagged with a …
Best Practices for Inter-VLAN Routing in CISCO
In this discussion, lets explore the best ways to set up Inter-VLAN Routing on Cisco devices, using simple explanations and clear examples to help configure network efficiently.
Fundamentals of VLAN's - Router on a stick - Cisco Learning …
To decide, which "Vlan Id Number" to attach, to the outgoing frames If the frame is going out of interface numbered FastEthernet 0/0.3, then attach Vlan-3 tag on to it *Click on the image to …
Different types VLAN - Cisco Learning Network
Feb 26, 2024 · Dynamic VLAN - LIke MAC-based, dynamic VLANs do not have a specific VLAN ID range assigned. Instead, VLAN membership is dynamically assigned by a VMPS (VLAN …
A quick summarized view to Private VLAN (PVLAN)
To begin with PVLAN, let’s look at the concept of VLAN as a broadcast domain. In general VLAN is a concept of segregating a physical network, so that separate broadcast domains can be …
Why and how are Ethernet Vlans tagged?
Jan 31, 2015 · In reality a VLAN tag is inserted in the Ethernet frame like this: The 802.1Q (dot1q, VLAN) tag contains a VLAN-ID and other things explained in the 802.1Q Standard. The first 16 …
What are the differences between Native Vlan vs Default Vlan vs …
The default VLAN is always set to VLAN 1 and it is the VLAN that comes pre-configured on every switch (Cisco, HP, etc). The concept behind this is that the switch needs at least one VLAN to …
Still do not get what "Native VLAN" is - Cisco Learning Network
Native vlan is actually more of a security concern than a security benefit. It is a good idea not to use a native vlan at all. One way to accomplish this is to set it to something that isn't really …