Cisco ASA and 3850 routing



As an IT administrator, it is important to understand the routing capabilities of both the Cisco ASA and Cisco Catalyst 3850 series switches. Both of these devices have different features and use cases, and it is important to be able to properly configure them for optimal performance and reliability.

The Cisco ASA is a firewall and security device that is designed to protect your network from malicious attacks and unauthorized access. It can be configured to filter traffic based on source, destination, protocol, port, and application. It also provides integrated routing capabilities that allow for the creation of secure tunnels between two different networks or subnets. Additionally, it provides advanced security features such as intrusion prevention, application control, content filtering, and VPN services. It is a very powerful device and can be used as the main security gateway for an organization.

The Cisco Catalyst 3850 series switches are designed for use in a campus or data center environment. They provide high-speed switching and routing capabilities that allow for virtualization and segmentation of the network. They are capable of providing Layer 2 and Layer 3 features such as VLANs, trunking, and port security. Additionally, they have advanced features such as redundant power supplies, stacking, and link aggregation. They can also provide advanced security features such as ACLs and stateful firewall capabilities.

One of the main differences between the Cisco ASA and the Cisco Catalyst 3850 series switches is in their routing capabilities. The Cisco ASA provides integrated routing capabilities, while the Cisco Catalyst 3850 series switches provide advanced routing capabilities through the use of Layer 3 switches. The Cisco Catalyst 3850 series switches can be configured to route traffic based on source, destination, protocol, port, and application. Additionally, they are capable of providing advanced routing features such as static routing, dynamic routing protocols, policy-based routing, and quality of service.

In order to properly configure the Cisco ASA and the Cisco Catalyst 3850 series switches for routing, it is important to understand the different routing protocols that are available. The most commonly used routing protocols are RIP, OSPF, and BGP. RIP is a basic distance-vector routing protocol that is used in small to medium-sized networks. OSPF is a link-state routing protocol that is used in larger networks and provides better scalability and performance. BGP is a path-vector routing protocol that is used in very large networks and is capable of providing advanced features such as route summarization and redistribution.

Once the routing protocols have been selected, the Cisco ASA and the Cisco Catalyst 3850 series switches must be configured appropriately. It is important to ensure that all of the necessary routing information is properly configured and that the routing protocols are correctly configured for the specific network environment. In addition, it is important to ensure that the routing policies and ACLs are properly configured to ensure the security of the network.

The Cisco ASA and the Cisco Catalyst 3850 series switches are powerful tools that can provide advanced routing capabilities and secure networks. They can be used in a wide variety of use cases, including small to medium-sized networks, large data centers, and campus networks. It is important to understand the features and capabilities of each device and to properly configure them for optimal performance and reliability.

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