Azure Network Watcher offers three features to monitor and troubleshoot external networking. Their features are IP flow verify, Effective security rules, and Connection troubleshoot, which are going to be covered in the next sections.
Managing external networking
IP flow verify
With IP flow verify, you can detect whether a package is allowed or denied to or from a network interface of a virtual machine. Included in the information are the protocol, the local and remote IP addresses, the direction, and the local and remote ports. When a packet is denied, the name of the routing rule that denies the packet is returned. You can use this to diagnose connectivity issues from or in the on-premises environment and to and from the...
