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Enterprise Networks

03.2020

How does Zero-Touch-Provisioning (ZTP) in Cisco SD-WAN work?

The Zero-Touch Provisioning (called ZTP) is the one of the concept behind SD-WAN that I mentioned here in What is SD-WAN article that I wrote about year ago. Frankly speaking, ZTP is something that every (or almost every) SD-WAN vendor has implemented. In this post I am going to dig into detail to the Cisco SDWAN ZTP.

Author: Marcin Bialy
03.2020

How to achieve Multi-Factor Authentication for RDP sessions?

In this blogpsot I am sharing a video showing how Cisco Duo Security serves as second factor (push app) authentication for Remote Desktop sessions. This recording was prepared for Grandmetric Tech Meeting Lab schema:   RDP and second factor authentication live demo   You can also read more about one of VPN MFA integration between […]

Author: Marcin Bialy
03.2020

VPN as a Service from Grandmetric during COVID-19

For the times of coronavirus (COVID-19) pandemic, Grandmetric has setup VPN as a service hub. If your company is lacking VPN SSL licenses, IPSec VPN performance, VPN appliances or simply enough knowledge, your employees can easily connect to Grandmetric VPN Hub

Author: Grandmetric
01.2020

5 Most Popular Posts From 2019

We’ve been bringing the tech trends to the readers of our blog, by continuing to write on certain topics (like 5G, SD-WAN, Wi-Fi networking). As a summary from 2019, we have compiled here a list of the 5 most popular posts from our website.

12.2019

Building Cisco identity-based network access with pxGrid

In following post I will discuss the concept of Identity based networking and its components based on Cisco Systems products. Then I will show the steps how to build functional network where pxGrid is one of the core protocols used.

Author: Marcin Bialy
10.2019

1st Tech Meeting Series – Enterprise Security Overview – Summary

On 8th of October 2019 we hosted first event from the new series: Tech Meeting Series. The conference cycle is intended for IT departments, engineers and IT managers who want to follow latest technology trends, want to talk about the technology with others, share experience and look for solutions best suitable for their organizations.

Author: Grandmetric
05.2019

Grandmetric to deliver first SD-WAN implementation in Poland

We are very proud to announce that Grandmetric successfuly delivered the first Software-Defined production network in quarter 1 2019 for Pfeifer & Langen Polska S.A. The implementation was part of network and IT operations optimization project for one of the largest sugar manufacturer in this part of Europe.

Author: Grandmetric
08.2018

Wi-Fi Radio Configuration & Measurements

This post discusses selected practical aspects of Wi-Fi systems including: explanation of some parameters and factors that the network performance is impacted by; showing how to configure some of the parameters them using CISCO Wireless LAN Controller; presenting simulated scenarios to show some examples of radio measurements.

06.2018

Cisco WLC does not switch to newly added Radius server

Problem description I came across one of customer’s problem with Cisco wireless controller and 802.1x network. Radius service was driven by NPS (Microsoft Windows Radius). After setup of new NPS server customer configured the second Radius server on WLC swaping the radius server priority (on the first place under the WLAN Security -> Advanced tab […]

Author: Marcin Bialy
05.2018

Cisco AP can’t join the WLC controller… DTLS handshake failure.

The problem, network components and topology I recently faced the issue with AP join to vWLC. Cisco 2700 AP could not join to newly installed Cisco vWLC controller. Coleague asked me to take a look and explained the topology. The vWLC was located in Grandmetric DC Testing Labs whereas Cisco CAP-2700 was located at Grandmetric […]

Author: Marcin Bialy
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