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Here you will find different articles about enterprises and service provider networks.
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December 15, 2021
Lecture 3.1: Network Address Translation (NAT)
Now that we have a basic understanding of IP addresses, DHCP and ACLs. NAT would our next tool that will have a critical role with internet access and port forwarding…
January 14, 2022
Lecture 3.0: Access-Lists (ACL)
Access-List are one of the most frequently used features that are utilized to achieve different kinds of tasks. Unlike what the name suggests, Access Lists are not only used to…
January 13, 2022
Enabling Linux CentOS as an SFTP
Secure file transfer protocols are always needed within any network and while scp works, it's usually slow due to the way it was designed.SFTP can be enabled on any Linux Server…
January 8, 2022
Lecture 2.2: Virtual Trunking Protocol (VTP)
VLAN Trunking Protocol (VTP): is a Cisco proprietary protocol that propagates the definition of Virtual Local Area Networks (VLANs) to the neighboring L2 devices. To do this, VTP carries VLAN information…
December 20, 2021
Lecture 2.1: CDP and LLDP
Cisco Discovery Protocol (CDP): Cisco Discovery Protocol is a proprietary Data Link Layer protocol developed by Cisco Systems. It is used to share information about other directly connected Cisco equipment,…
December 20, 2021
Lecture 2.0: DHCP
DHCP: DHCP Servers leases IP addresses to clients and offer a seamless user experience. DHCP Depends on 4 types of packets and uses UDP port 67/68 (UDP port number 67…
December 20, 2021
Lecture 1.3: Basic Configuration
Cisco devices have two main shell modes, the user EXEC mode and the Privileage EXEC mode The user EXEC mode offers a very limited set of commands like ping, telnet,…
December 18, 2021