Azure Route Server
Azure Route Server allows network appliances to dynamically exchange routes with Azure Virtual Networks. It simplifies routing configuration by automating the distribution of route information between your virtual network and connected hardware or software appliances. This service helps maintain consistent routing tables without manual intervention, ensuring that traffic flows correctly across your cloud infrastructure.
Choose this solution when you need automated route exchange between virtual networks and external appliances. Be aware that there is no free tier available, so you will incur costs based on a pay-as-you-go pricing model. This means you pay for usage rather than a fixed monthly fee, which can impact your budget if traffic volumes are high or unpredictable.