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Showing posts from 2018

How to synchronize cisco router or switch clock with Network Time Protocol (NTP)

When cisco IOS runs for first time or after reset default time and date needs to be set correct. You can to this manually or with synchronization. In this topic we will talk about synchronization with Network Time Protocol (NTP). for this you need first time choose NTP server and know it's IP address, you can find it here - https://tf.nist.gov/tf-cgi/servers.cgi after this go to cisco terminal and enter following commands: 1. Cisco# configure terminal 2. Cisco(config)# ntp server <NTP server IP address> after this you can verify how it works with commands: Cisco# ntp status Cisco# ntp associations After every configuration change don't forger write config.

How to install Net Framework 3.5 offline on Windows 10

How to install Net Framework 3.5 offline on Windows 10 Sometimes there is scenario, when we need to install .Net Framework, but there is no internet or connection lost to required server. In this case we can install .Net Framework offline in few little steps. For this we need PowerShell and .Net Framework .cab file. You can use Windows 10 installation Disk or Flash drive or Image file. First time, inter Disk or flash drive or mount image, then open PowerShell with administrator rights and use this command Dism /online /enable-feature /featurename:NetFX3 /All /Source:X:\sources\sxs /LimitAccess X: - this is source drive, where .cab file located. Add this command hit enter and wait for installation. If in your Windows installation media you can't find \sources\sxs folder with required .cab file, then you can download it from this link microsoft-windows-netfx3-ondemand-package copy where you want on your drive and change "X:\sources\sxs" with correct location, e

How to download Winbox

If you are here and read this article, I assume you know what is Mikrotik and Winbox. If not, let me make basic explanation. Mikrotik is name of company, who makes network devices such as Router, Switch, Wireless devices. Winbox is software for working with Mikrotik devices. Of course, they have web or ssh based configuration, but with Winbox everything is much more easier and user friendly. For download Winbox here is two way, of course there are much more ways but this are official ways, another are mirrors or something else. First and easy way is access your Mikrotik device IP via web browser, default IP address for Mikrotik devices is – 192.168.88.1 If you already configured your device and changed default IP address, then access your new IP address. When you are there, you’ll see something like this (Pic 1). this is Mikrotik web interface.  Pic 1 Here you will see Winbox logo (Pic 2),  Pic 2 click on it and download, open Winbox and configure you Mikrotik dev

How to change Mikrotik Ethernet Port MAC address

When we work with network devices, configuring it and make some changes, sometimes we need to change MAC address of different ports or whole devices. With Mikrotik devices this is very simple task. For change MAC address to port of Mikrotik device, we need few steps. When I write this article I assume, you know how to use Winbox and basics of networking and Mikrotik, if no then you can see What is Winbox and how to use it article.   First step open Winbox and connect to Mikrotik router or switch, that where you need to change port Mac address. (Pic 1) Pic 1 On left panel find New Terminal and open it. (Pic 2) Pic 2   In terminal windows write - /interface ethernet set ether1 mac-address=xx:xx:xx:xx:xx:xx and press enter. In this command ether1 is name of port, you want to change MAC address, you can change it ith your port name. xx:xx:xx:xx:xx:xx – here you need to enter new MAC address.   (Pic 3) Pic 3 That’s all, MAC if you write everything correctly, MAC