Archive for the ‘ENSA’ Category

Static NAT

Posted: 17th November 2020 by ccna7guru in ENSA

Now that you have learned about NAT and how it works, this topic will discuss the many versions of NAT that are available to you. Static NAT uses a one-to-one mapping of local and global addresses. These mappings are configured by the network administrator and remain constant. In the figure, R2 is configured with static […]

In the Answer Network panel, you construct the answer network, and mark the elements of the network on which you want to assess the students. Click on the Show Answer Network button to view the workspace for the answer network. If you chose to convert the existing workspace to the answer network when you first entered the […]

Enterprise Networking, Security, and Automation (ENSA)

Posted: 28th June 2020 by ccna7guru in ENSA

These course materials will assist you in developing the skills necessary to do the following: Explain how single-area OSPF operates in both point-to-point and broadcast multiaccess networks. Verify single-area OSPFv2 in both point-to-point and broadcast multiaccess networks. Explain how vulnerabilities, threats, and exploits can be mitigated to enhance network security. Explain how ACLs are used […]


Posted: 21st June 2020 by ccna7guru in ENSA

OSPFv3 is the OSPFv2 equivalent for exchanging IPv6 prefixes. Recall that in IPv6, the network address is referred to as the prefix and the subnet mask is called the prefix-length. Similar to its IPv4 counterpart, OSPFv3 exchanges routing information to populate the IPv6 routing table with remote prefixes. Note: With the OSPFv3 Address Families feature, […]

Link-State Operation of OSPF

Posted: 21st June 2020 by ccna7guru in ENSA

To maintain routing information, OSPF routers complete a generic link-state routing process to reach a state of convergence. The figure shows a five router topology. Each link between routers is labeled with a cost value. In OSPF, cost is used to determine the best path to the destination. The following are the link-state routing steps […]

Control Plane and Data Plane

Posted: 14th June 2020 by ccna7guru in ENSA

The previous topic explained virtual network infrastructure. This topic will cover Software- Defined Networking (SDN). SDN was explained in the previous video. We will cover more details here. A network device contains the following planes: Control plane – This is typically regarded as the brains of a device. It is used to make forwarding decisions. The […]