How to connect multiple branch offices to the headquarter using GRE tunnel
This demonstration was borne out of the many years of experience I have had deploying enterprise network solutions for cooperate organizations whose … Read more
Cisco
Use prefix-list in bgp to control route updates
The prefix-list command can be used to control route updates and protect your router from being consumed by bgp updates comming from … Read more
Cisco Etherchannel bonding: How to configure layer 2 etherchannel using LACP and PAgP
Etherchannel is a port aggregation feature that allows for the bonding together of two or more switch ports into a logical interface. … Read more
Cisco CCNA: analyzing spanning tree protocol, from start to finish.
The spanning tree protocol is a layer 2 protocol used to avoid loops in a switched network. In discussing the spanning tree … Read more
Fault tolerance: HSRP design and implementation on Cisco routers, from start to finish.
Building networks with fault tolerance in mind is one of the things that make you an experienced engineer. Service providers leverage on … Read more
Native Vlan: why you should not use VLAN 1 as your native Vlan. See how to move your native Vlan away from Vlan1
Vlan configuration is one of the skills young engineers studying towards CCNA certification crave to have. It validates your ability to segment … Read more
IPv6 to IPv4 Tunnel: How to set up an IPv6 tunnel between two Cisco routers to route IPv6 packets through IPv4 network.
With the world, fast running out of IPv4 and countries like China far gone in IPv6 implementation, the probability of your organisation … Read more
Port forwarding: how to configure static NAT to allow access to internal web server using the public IP on your router.
From the network topology, we have a web server that has been assigned a private IP address for security reasons. The task … Read more
Network Address Translation (NAT) configuration on a Cisco router, from start to finish.
NAT is a feature that allows internet access for users who are connected using private addresses. Because IP version 4 only provides … Read more
Cisco CCNA: Implementing EIGRP with VLSM and manual summarization. See all eigrp show commands and their functions.
The enhanced interior gateway routing protocol is no doubt one of the best routing protocols that you can configure on your network. … Read more
Cisco CCNA: Powering on Cisco routers. Boot process explained, from start to finish.
It is very easy for one to know how to use a Cisco router without knowing the various stages involved during its … Read more
Cisco CCNA: GNS3 initial setup process, from start to finish.
While the Cisco Packet Racer is unarguably one of the best applications ever developed to aid young network enthusiasts learn and master … Read more
Cisco CCNA route summarization: how to generate a summary address and mask for efficient route advertisement
In Cisco CCNA, summarization is one of the topics many students wish to skip because they find it difficult to get a … Read more
Cisco CCNA: variable length subnet mask, from start to finish.
Building an efficient network involves design, implementation and optimization. These three are merged together and called network engineering. Just like the foundation … Read more
Cisco CCNA: subnetting class A addresses, from start to finish.
Having treated how to subnet class B and Class C addresses, I did mention that class A was next in line. Starting from … Read more