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 …
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 …
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.
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 …
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 …
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 …
VLAN VS Subnetting - Cisco Learning Network
Is separating a network by VLAN same thing as separating network by subnetting? I understand that by subnetting, I'm creating different networks that will have different network address. If I …
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 …
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. …
Mitigating VLAN hopping/layer 2 attacks - Cisco Learning Network
The best way to prevent a basic VLAN hopping attack is to turn off DTP on all ports, and explicitly configure trunking mode or access mode as appropriate on each port. The double-tagging (or …