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viktor (54 Posts)

Automating VRF-aware IPsec VPN with IKEv2 using Netmiko and Jinja2 templates

viktor
Automation Cisco GNS3 IKEv2 IPsec Networking Python VPN

In the previous IPsec posts we established the tunnel using IKEv1 and used the crypto isakmp ... command. Now in this post we'll take a…

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Network Automation with Python: Netmiko and NAPALM basics

viktor
Automation Cisco GNS3 Networking Python

In the previous post we've seen how we can automate network devices by sending/receiving structured configuration/state data by using YANG models. Now we're going to…

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Model-Driven Configuration part 1: Implementing RESTCONF on IOS-XE

viktor
Automation Cisco GNS3 Networking Postman Python RESTCONF

This post is the first part of a series where we're going to explore YANG models and take look at how we can configure IOS-XE…

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Implementing VXLAN on NX-OS part 2: Anycast RP with MSDP, Phantom RP, BGP EVPN, inter-VXLAN routing with Symmetric IRB

viktor
BGP Cisco GNS3 Multicast Networking Switching VXLAN

We continue the previous VXLAN lab first by providing redundancy for the RP. I'll show two methods: Anycast RP with MSDP and Phantom RP which…

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Implementing VXLAN on NX-OS part 1: basic VXLAN operation, multicast flood and learn

viktor
Cisco GNS3 Networking Switching VXLAN

VXLAN is tunneling protocol, which is mainly used in data centers. With VXLAN we can encapsulate the whole Ethernet frame in a UDP datagram. VXLAN…

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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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