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 multiple …
VLAN1 and VLAN Hopping Attack - Cisco Learning Network
This VLAN Hopping Attack method would be possible by having the attacker and the target machines connected to the same switch. The attacker in this case would use malicious software to add the …
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 created. …
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.
vlan - Setting up PIM Sparse mode - Network Engineering Stack …
interface vlan 14 ip igmp ip pim interface vlan 15 ip igmp ip pim exit If you want the traffic to traverse all Vlans, then you will need the appropriate interface configuration under each Vlan. Your L2 switches …
Why should I use vlans instead of subnets?
May 6, 2022 · Why should I use vlans instead of subnets? VLANs cannot replace IP subnets. But they can structure your network - for scalability, resilience, security, or some other reason. VLANs and …
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 bits …
How to see if a VLAN is part of a trunk? - Cisco Learning Network
The command you have shonw, do mean I have to check all interfaces individually, to see if the VLAN is allowed over the trunk. This cost a lot of time, especially if a switch has a lot of trunk connection. …
Fundamentals of VLAN's - Router on a stick - Cisco Learning Network
The VLAN tag of the frame is removed and it is ejected towards the switch, Because the interface from which this frame will be "ejected" - FastEthernet 0/0.1 - is configured as a "dot1Q native" interface on …
Introduction to VXLAN - Cisco Learning Network
To solve VLAN limitations in data centers and cloud, so it can provide scalability by allowing Layer2 encapsulated in UDP or so it extends VLAN. This is called MAC-in-UDP (UDP port 4789) …