Dynamic Trunking Protocol (DTP) makes it easy to sniff traffic from other VLANs. Disable DTP on user facing ports by making those ports access ports.

You need to learn to code! Learn Python. Learn Networking. You are going to be very powerful and very scary if you combine knowledge of networking with Python scripting! But, do good.

Learn to code. Learn Linux. Learn Networking.

Menu:
0:00 ▶️ You need to learn Python!
0:57 ▶️ Network Topology
1:28 ▶️ Python Script overview
2:00 ▶️ Cisco switch DTP setup
3:00 ▶️ We can see other VLAN traffic
3:45 ▶️ Script demo
4:24 ▶️ Results of attack
5:09 ▶️ Script explanation
5:49 ▶️ Create a loop
6:50 ▶️ Wireshark capturing of a different VLAN
9:07 ▶️ Kali Linux can see all VLAN traffic

======
Scripts:
======
All scapy scripts here: https://davidbombal.wiki/githubscapy
Scapy DTP attack: https://davidbombal.wiki/scapydtp

Playlist: https://davidbombal.wiki/scapy

==============
Scapy Resources:
==============
Website: https://scapy.net/
Documentation: https://scapy.readthedocs.io/en/latest/

================
Cisco Best practice:
================
Access ports (for vlan 2 in this case):
Switch(config-if)# switchport mode access
Switch(config-if)# switchport access vlan 2

Trunk ports:
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk encapsulation dot1q
Switch(config-if)# switchport nonegotiate

================
Connect with me:
================
Discord: https://discord.com/invite/usKSyzb
Twitter: https://www.twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal
LinkedIn: https://www.linkedin.com/in/davidbombal
Facebook: https://www.facebook.com/davidbombal.co
TikTok: http://tiktok.com/@davidbombal
YouTube: https://www.youtube.com/davidbombal

python
scapy
ccna
ccnp
python scapy
dtp
dynamic trunking protocol
dynamic trunk protocol
ccna 200-301
python scripts
kali linux
linux
kali
cisco
kali linux 2021.2
kali linux 2021
vmware
vmware kali
kali linux install
oscp
ceh
security+
pentest+

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

#ccna #python #scapy