Configuring a single-area OSPF for a network topology of three Cisco routers and five networks
The Open shortest Path First (Ospf) is one of the best internal routing protocols deployed by network engineers on enterprise networks. Apart … Read more
Cisco
How to configure a GRE tunnel between a Mikrotik router and a Cisco router
Generic Routing Encapsulation (GRE) is a tunneling protocol that was developed by Cisco to encapsulate a wide variety of protocols transported inside … Read more
How to deny web access from a host to a server in an IPv6 network
The most popular and one of the most important simulation in the CCNA exam is the access-list question where candidates are asked … Read more
How to configure Site-to-site IPsec VPN using the Cisco Packet Tracer.
Cisco has made it possible to implement IPsec VPN on Packet Tracer by including security devices among the routers available on the … Read more
IPv6 routing: How to configure EIGRP on IPv6 networks using the Cisco Packet Tracer
Still on the IPv6 routing series, this demonstration will be on how to configure eigrp on IPv6 networks. Everyone talks about the … Read more
IPv6 routing: how to configure IPv6 static routes on a network topology with three routers
Yesterday, I made a post on how to configure static route on a network topology involving three routers. See here. Today, using … Read more
IPv4 routing: how to configure static route on a network topology with three routers
Static route is awesome if you know what you are doing. An excellent implementation of static route on your network puts you … Read more
IPv6 routing: how to configure Routing information protocol next generation (RIPng) on Cisco routers.
It’s no longer news that the world is fast moving to an all-IPv6 network known as the internet 2. What is news, … Read more
Cisco ASA firewall initial configuration: IP address assignment, NAT and default routes.
The Cisco ASA firewall is a highly sophisticated piece of network gear that is required to provide a shield on your network. … Read more
Protecting network stability with Spanning tree root guard.
The spanning tree protocol is used to avoid loop while creating some form of redundancy on a switched network. Having spanning tree … Read more
How to use the spanning tree BPDU guard to prevent switching loop/attacks on your network
As we all know, the spanning tree protocol is used to prevent switching loop but because of the 30 seconds delay, you … Read more
Configuring Cisco route redistribution between EIGRP and OSPF
Ospf and Eigrp are without doubt, two of the best internal routing protocols out there. Not only do they support VLSM and … Read more
Rogue dhcp: what it is and how to stop it on your network using dhcp snooping.
The good thing about networking is that you do not need all the configurations in this world to get your network up … Read more
WAN: implementing frame-relay point to point on Cisco routers, from start to finish.
Most CCNA exam preps explain Frame-relay from a client’s angle and not from a service provider’s perspective. With such information, most CCNA … Read more
Troubleshooting Cisco IPsec VPN
This is the third post in the Cisco IPsec series. You can find the first and second here and here. In this post, … Read more