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viktor (49 Posts)

Hacking networks with Scapy (Part 1): attacking DTP/Spanning Tree

viktor
Cisco GNS3 Hacking Kali Networking Python Scapy Security

Scapy is a very powerful packet crafting, packet manipulation tool written in Python. With the help of Scapy we can perform many kind of malicious…

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BGP Additional-paths vs. Multipath

viktor
BGP Cisco Networking

In the following post we're going to take a look at these two features: what are their purpose and in which situations can they be…

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BGP AS-PATH manipulation techniques: local-as, prepending, allowas-in, as-override

viktor
BGP Cisco Networking

The AS-PATH is one most interesting BGP path attribute. It's a well known, mandatory, and transitive path attribute, so it must be included in every…

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Implementing Unified MPLS

viktor
BGP Cisco MPLS Networking Redistribution

Because of scalability reasons we might have multiple IGP processes running within our core network. If we have many routers and prefixes we might have…

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Crating a Python script to control the GPIO of my Raspberry Pi

viktor
Linux Python Raspberry Pi

To practice for my CCNP ENCOR I've been creating simple Python scripts recently. I've got a few Raspberry Pis and temperature sensors lying around at…

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Implementing MPLS-TE: VPN over the TE tunnel from PE to PE, TE metric, explicit-path

viktor
Cisco MPLS MPLS-TE Networking OSPF

By default the IGP metric (ISIS/OSPF cost) determines how the packets are forwarded within the MPLS core. With MPLS Traffic Engineering (TE) we can be…

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