![]() The above diagram explains traffic flow between the client and the server with the insertion of the firewall cluster in the network. In this case, clustering has the following roles: Figure 1: Cisco Secure Firewall Clustering Overview Clusters can go up to 16 members, and we use VxLAN for CCL. ![]() Cisco uses Cluster Control Link (CCL) for forwarding asymmetric traffic across devices in the cluster. This capability lets you group multiple Secure Firewall Threat Defense Virtual appliances together as a single logical device, known as a “cluster.”Ī cluster provides all the conveniences of a single device (management and integration into a network) while taking advantage of the increased throughput and redundancy you would expect from deploying multiple devices individually. To solve these challenges, Cisco created stateful firewall clustering with Secure Firewall in AWS.Ĭisco Secure Firewall clustering overviewįirewall clustering for Secure Firewall Threat Defense Virtual provides a highly resilient and reliable architecture for securing your AWS cloud environment. Organizations are looking out for their long-term cloud strategies by ruling out SNAT and are calling for a more reliable and scalable solution for connecting their applications and security for always-on protection. Complex SNAT configuration can mitigate asymmetric routing issues, but this isn’t practical for sustaining public cloud operations. In theory, this may be a good decision, but in practice-this could lead to asymmetric routing issues. ![]() ![]() Organizations may introduce multiple individual firewalls into their AWS infrastructure to produce this outcome. But just as organizations need these capabilities to ensure their applications operate where needed and as needed, they also require their security does the same. Organizations embrace the public cloud for the agility, scalability, and reliability it offers when running applications. ![]()
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