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VLAN InterSwitch Link (ISL) Protocol Analysis
Deciding whether to use ISL or IEEE 802.1q to power your trunk links can be quite confusing if you cannot identify the advantages and disadvantages of eac…
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The digital transformation is pushing applications to the cloud, the 2020-2022 pandemic shifted employees to work from home, and the number of resulting n…
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In this article we will show you how to enable SNMP on your VMware ESXi host, configure SNMP Community string and configure your ESXi firewall to allow or…
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Secure Access Service Edge (SASE) is an architecture widely regarded as the future of enterprise networking and security. In previous articles we talked a…
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This article provides in-depth analysis of DHCP Option 82 (DHCP Relay Agent) which is one of the +180 DHCP Options available to the DHCP protocol and used…
Complete Guide to DHCP Snooping, How it Works, Concept…
This article covers popular Layer 2 & Layer 3 network attacks with a focus on DHCP Starvation Attacks, Man-in-the-Middle attacks, unintentional rogue…
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Our previous article covered how to fix the Cisco Configuration Professional display/window problem where the CCP application is displayed in about one th…
Secure CallManager Express Communications - Encrypted…
In this article we discuss about the security and encryption of Cisco Unified Communications Manager Express (CUCME) which is an integral part of Cisco UC…