- 1 What is the purpose of an STP manipulation attack?
- 2 How do you mitigate a STP attack?
- 3 What is STP and how it works?
- 4 What is STP mode?
- 5 What is PortFast STP?
- 6 What is CDP attack?
- 7 What is a VLAN hopping attack?
- 8 What is DHCP spoofing attack?
- 9 Where do I turn in Bpdu guard?
- 10 What are the types of STP?
- 11 How do I enable STP?
- 12 How do STP protocols work?
- 13 Why is STP needed?
- 14 What is the value of STP?
- 15 Do I need to enable STP?
What is the purpose of an STP manipulation attack?
STP prevents bridging loops in a redundant switched network environment. By avoiding loops, you can ensure that broadcast traffic does not become a traffic storm. STP is a hierarchical tree-like topology with a “root” switch at the top.
How do you mitigate a STP attack?
To mitigate Spanning Tree Protocol ( STP ) manipulation attacks, use PortFast and Bridge Protocol Data Unit (BPDU) Guard: PortFast – PortFast immediately brings an interface configured as an access or trunk port to the forwarding state from a blocking state, bypassing the listening and learning states.
What is STP and how it works?
The Spanning Tree Protocol ( STP ) is responsible for identifying links in the network and shutting down the redundant ones, preventing possible network loops. In order to do so, all switches in the network exchange BPDU messages between them to agree upon the root bridge. The root bridge needs to be elected.
What is STP mode?
STP protects a Layer 2 Broadcast domain from Broadcast storms by selectively setting links to standby mode to prevent loops. STP provides a tree topology for any arrangement of switches and interconnecting links, creating a unique path between end stations on a network, eliminating loops.
What is PortFast STP?
PortFast causes a switch or trunk port to enter the spanning tree forwarding state immediately, bypassing the listening and learning states. When you enable PortFast on a switch or trunk port, the port is immediately transitioned to the spanning tree forwarding state.
What is CDP attack?
CDP discovers other Cisco devices that are directly connected, which makes possible to the devices to auto-configure their connection in some cases, simplifying configuration and connectivity. CDP messages are not encrypted.
What is a VLAN hopping attack?
VLAN hopping (virtual local area network hopping ) is a method of attacking a network by sending packets to a port that is not normally accessible from a given end system.
What is DHCP spoofing attack?
DHCP spoofing occurs when an attacker attempts to respond to DHCP requests and trying to list themselves (spoofs) as the default gateway or DNS server, hence, initiating a man in the middle attack.
Where do I turn in Bpdu guard?
At the global level, you enable BPDU guard on Port Fast- enabled STP ports by using the spanning-tree portfast bpduguard default global configuration command. Spanning tree shuts down STP ports that are in a Port Fast-operational state if any BPDU is received on those ports.
What are the types of STP?
Types of Sewage Treatment Plants
- Activated sludge plant (ASP)
- Rotating disc system.
- Submerged aerated filter (SAF)
- Suspended Media Filters (SMF)
- Sequencing batch reactor (SBR)
- Non-electric filter.
- Trickling filter.
How do I enable STP?
All switches from Cisco ship with Spanning Tree Protocol ( STP ) enabled by default, but if STP is misconfigured for any reason, you can easily enable it. To enable spanning tree, connect to your switch and type spanning-tree mode while in Global Configuration mode.
How do STP protocols work?
Spanning Tree Protocol ( STP ) prevent the looping of frame by putting the interfaces of switch in either forwarding or blocking state. In Order to choose interface for forwarding and blocking state, STP uses three criteria:
- Selection of root switch.
- All other non-root switches makes a root port.
Why is STP needed?
Spanning Tree Protocol ( STP ) is a Layer 2 protocol that runs on bridges and switches. The specification for STP is IEEE 802.1D. The main purpose of STP is to ensure that you do not create loops when you have redundant paths in your network. Loops are deadly to a network.
What is the value of STP?
Since 1982, STP is defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 105 Pa (100 kPa, 1 bar).
Do I need to enable STP?
Broadcast storms caused by loops can slow or stop traffic on your network, but STP can prevent loops by ensuring that only one path between each set of switches is active. You must enable or disable STP or RSTP for each network location in which you are using Insight Managed Switches. By default, STP is disabled.