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In Could 2023, we introduced the final availability of Routing intent and routing insurance policies for all Digital WAN clients. This function is powered by the Digital WAN routing infrastructure and permits Azure Firewall clients to arrange insurance policies for personal and web visitors. We’re additionally extending the identical routing capabilities to all Firewall options deployed inside Azure Digital WAN together with Community Digital Home equipment and software-as-a-service (SaaS) options that present Firewall capabilities.
Routing Intent additionally completes two secured hub use circumstances whereby customers can safe visitors between Digital WAN hubs in addition to examine visitors between totally different on-premises (department/ExpressRoute/SD-WAN) that transits by way of Digital WAN hubs.
Azure Digital WAN (vWAN), networking-as-a-service, brings networking, safety, and routing functionalities collectively to simplify networking in Azure. With ease of use and ease inbuilt, vWAN is a one-stop store to attach, shield, route visitors, and monitor your huge space community.
On this weblog, we are going to first describe routing intent use circumstances, product experiences, and summarize with some further concerns and assets for utilizing routing intent with Digital WAN.
Use circumstances for Digital WAN
You should use Routing Intent to engineer visitors inside Digital WAN in a number of methods. Listed below are the principle use circumstances:
Apply routing insurance policies for Digital Networks and on-premises
Prospects implementing hub-and-spoke community architectures with massive numbers of routes usually discover their networks exhausting to know, preserve, and troubleshoot. In Digital WAN, these routes will be simplified for visitors between Azure Digital Networks and on-premises (ExpressRoute, VPN, and SD-WAN).
Digital WAN makes this simpler for patrons by permitting clients to configure easy and declarative non-public routing insurance policies. It’s assumed that non-public routing insurance policies can be utilized for all Azure Digital Networks and on-premises networks related to Digital WAN. Additional customizations for Digital Community and on-premises prefixes are at present not supported. Non-public routing insurance policies instruct Digital WAN to program the underlying Digital WAN routing infrastructure to allow transit between two totally different on-premises (1) through a safety resolution deployed within the Digital Hub. It additionally permits visitors transiting between two Azure Digital Networks (2) or between an Azure Digital Community and an on-premises endpoint (3) through a safety resolution deployed within the Digital Hub. The identical visitors use circumstances are supported for Azure Firewall, Community Digital Home equipment, and software-as-a-service options deployed within the hub.
Apply routing insurance policies for web visitors
Digital WAN allows you to arrange routing insurance policies for web visitors with a view to promote a default (0.0.0.0/0) path to your Azure Digital Networks and on-premises. Web visitors routing configurations mean you can configure Azure Digital Networks and on-premises networks to ship web outbound visitors (1) to safety home equipment within the hub. You may also leverage Vacation spot-Community Deal with Translation (DNAT) options of your safety equipment if you wish to present exterior customers entry to functions in an Azure Digital Community or on-premises (2).
Apply routing insurance policies for inter-hub cross-region visitors
Digital WAN mechanically deploys all Digital Hubs throughout your Digital WAN in a full mesh, offering zero-touch any-to-any connectivity region-to-region and hub-to-hub utilizing the Microsoft international spine. Routing insurance policies program Digital WAN to examine inter-hub and inter-region visitors between two Azure Digital Networks (1), between two on-premises (2), and between Azure Digital Networks and on-premises (3) related to totally different hubs. Each packet coming into or leaving the hub is routed to the safety resolution deployed within the Digital Hub earlier than being routed to its ultimate vacation spot.
Consumer expertise for routing intent
To make use of routing intent, navigate to your Digital WAN hub. Underneath Routing, choose Routing Intent and routing insurance policies.
Configure an Web or Non-public Routing Coverage to ship visitors to a safety resolution deployed within the hub by deciding on the following hop kind (Azure Firewall, Community Digital Equipment, or SaaS resolution) and corresponding subsequent hop useful resource.
Azure Firewall clients can even configure routing intent utilizing Azure Firewall Supervisor by enabling the ‘inter-hub’ setting.
After configuring routing intent, you’ll be able to view the efficient routes of the safety resolution by navigating to your Digital Hub, then choose Routing, and click on Efficient Routes. The efficient routes of the safety resolution present further visibility to troubleshoot how Digital WAN routes visitors that has been inspected by the Digital hub’s safety resolution.
Earlier than you get began with this function, listed below are some key concerns:
- The function caters to customers that take into account Digital Community and on-premises visitors as non-public visitors. Digital WAN applies non-public routing insurance policies to all Digital Networks and on-premises visitors.
- Routing intent is mutually unique with customized routing and static routes within the ‘defaultRouteTable’ pointing to Community Digital Equipment (NVA) deployed in a Digital Community spoke related to Digital WAN. Consequently, use circumstances the place customers are utilizing customized route tables or NVA-in-spoke use circumstances usually are not relevant.
- Routing Intent advertises prefixes equivalent to all connections to Digital WAN in the direction of on-premises networks. Customers might use Route Maps to summarize and combination routes and filter based mostly on outlined match situations.
Study extra about Azure Digital WAN
We look ahead to persevering with to construct out Azure Digital WAN and including extra capabilities sooner or later. We encourage you to check out the Routing Intent function in Azure Digital WAN and look ahead to listening to extra about your experiences to include your suggestions into the product.
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