In Could 2023, we introduced the overall availability of Routing intent and routing insurance policies for all Digital WAN prospects. This function is powered by the Digital WAN routing infrastructure and permits Azure Firewall prospects to arrange insurance policies for personal and web site visitors. We’re additionally extending the identical routing capabilities to all Firewall options deployed inside Azure Virtual 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 instances whereby customers can safe site visitors between Digital WAN hubs in addition to examine site visitors between completely 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 site visitors, and monitor your broad space community.
On this weblog, we’ll first describe routing intent use instances, product experiences, and summarize with some further concerns and sources for utilizing routing intent with Digital WAN.
Use instances for Digital WAN
You should utilize Routing Intent to engineer site visitors inside Digital WAN in a number of methods. Listed here are the principle use instances:
Apply routing insurance policies for Digital Networks and on-premises
Prospects implementing hub-and-spoke community architectures with giant numbers of routes typically discover their networks exhausting to grasp, preserve, and troubleshoot. In Digital WAN, these routes will be simplified for site visitors between Azure Digital Networks and on-premises (ExpressRoute, VPN, and SD-WAN).
Digital WAN makes this simpler for purchasers by permitting prospects to configure easy and declarative non-public routing insurance policies. It’s assumed that personal routing insurance policies might be utilized for all Azure Digital Networks and on-premises networks linked to Digital WAN. Additional customizations for Digital Community and on-premises prefixes are at the moment not supported. Personal routing insurance policies instruct Digital WAN to program the underlying Digital WAN routing infrastructure to allow transit between two completely different on-premises (1) by way of a safety resolution deployed within the Digital Hub. It additionally permits site visitors transiting between two Azure Digital Networks (2) or between an Azure Digital Community and an on-premises endpoint (3) by way of a safety resolution deployed within the Digital Hub. The identical site visitors use instances 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 site visitors
Digital WAN allows you to arrange routing insurance policies for web site visitors in an effort to promote a default (0.0.0.0/0) path to your Azure Digital Networks and on-premises. Web site visitors routing configurations will let you configure Azure Digital Networks and on-premises networks to ship web outbound site visitors (1) to safety home equipment within the hub. You can even leverage Vacation spot-Community Handle Translation (DNAT) options of your safety equipment if you wish to present exterior customers entry to purposes in an Azure Digital Community or on-premises (2).
Apply routing insurance policies for inter-hub cross-region site visitors
Digital WAN routinely 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 world spine. Routing insurance policies program Digital WAN to examine inter-hub and inter-region site visitors between two Azure Digital Networks (1), between two on-premises (2), and between Azure Digital Networks and on-premises (3) linked to completely 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 closing vacation spot.
Consumer expertise for routing intent
To make use of routing intent, navigate to your Digital WAN hub. Beneath Routing, choose Routing Intent and routing insurance policies.
Configure an Web or Personal Routing Coverage to ship site visitors to a safety resolution deployed within the hub by choosing the following hop kind (Azure Firewall, Community Digital Equipment, or SaaS resolution) and corresponding subsequent hop useful resource.
Azure Firewall prospects may 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 site 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 contemplate Digital Community and on-premises site visitors as non-public site visitors. Digital WAN applies non-public routing insurance policies to all Digital Networks and on-premises site 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 linked to Digital WAN. In consequence, use instances the place customers are utilizing customized route tables or NVA-in-spoke use instances will not be relevant.
- Routing Intent advertises prefixes akin to all connections to Digital WAN in the direction of on-premises networks. Customers might use Route Maps to summarize and mixture routes and filter primarily based on outlined match situations.
Be taught 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.