![]() ![]() ![]() Virtual network gateway enables connectivity between Azure virtual networks and on-prem resources. Diagnose problems with the Azure virtual network gateway and connections You can store the capture on the VM’s disk, in Azure Storage, or both. This includes fine-tuned controls and advanced filtering options, including the capability to set size limitations and time and provide versatility. Capture packets to and from a virtual machine Also, you can override or create more Azure default routes. This traffic from all resources, including virtual machines, deployed in a virtual network, is directed based on the default routes. Diagnose network routing problems for a virtual machineĪzure makes multiple default outbound routes for network traffic when a virtual network is created. This test will return the same information returned using the connection monitor capability. The connection troubleshoot capability in diagnostic tools allows you to test a connection between a virtual machine and an FQDN, another VM, a URI, or an IPv4 address. Diagnose outbound connections from a virtual machine The IP flow verify capability allows you to specify a resource and destination protocol, port, IPv4 addresses, and inbound and outbound traffic direction. Azure allows you to override default rules or make additional ones. When deploying a virtual machine, Azure places multiple default security rules to the virtual machine that enables or denies traffic to or from it. Diagnostic tools enable you to: Diagnose a network traffic filtering problem to or from a virtual machine Network Security Groups (NSG) have rules to determine if the network traffic can flow between two endpoints or not. Following is an illustration of a topology diagram for a virtual network, having two VMs, network security groups, three subnets, public IP addresses, route tables, network interfaces, and their relationship with each other. The network topology capability in the Network Watcher lets you make a visual diagram of those resources and the relationship between them. With more resources in a virtual network, it may become difficult to understand what resources are present in a network and their relation with each other. View resources in a virtual network and their relationship Also, it uses a VPN or Azure ExpressRoute to monitor network links to on-prem infrastructure. The network performance monitor can verify and inform you about the performance between multiple network infrastructure endpoints. Some potential reasons can be the CPU, a DNS name resolution problem, memory, or a firewall within the OS of a virtual machine. The connection troubleshoot will inform you of the reason if any endpoint is unreachable. The connection monitor informs you about the reachability, changes in network topology, and latency between the endpoint and the VM by monitoring communication at regular intervals. Network Watcher can monitor different endpoints, including virtual machines, an IPv4 address, uniform resource identifiers (URI), or a fully qualified domain name. Monitor communication between a virtual machine and an endpoint Also, it helps view resources in a virtual network and their relationships. The monitoring tool in Network Watcher is used to monitor communication between an endpoint and a virtual machine. There are several tools in Network Watcher to manage IaaS resources. You may check Azure services such as Log Analytics, Application insights, or Azure Monitor to monitor PaaS resources. It must be noted that Network Watchers does not suit Platform-as-a-Service (PaaS) services or Web Analytics. It is made for monitoring and repairing the network health of IaaS products, including Virtual Networks, Load balancers, Virtual Machines, etc. ![]() What is Azure Network Watcher?Īzure Network Watcher has the tools to diagnose, monitor, enable or disable logs for resources, and view metrics in an Azure virtual Network. In this article, we will discuss Azure Network Watcher and how it works. In this case, a network watcher can help to diagnose and troubleshoot the problem at the network level. Similarly, when you create a flexible yet complex setup in Azure to connect many virtual machines (VMs), it may cause connectivity issues. Sometimes there are situations where it becomes difficult to identify problems and troubleshoot due to an error in the configuration in on-prem networks. ![]()
0 Comments
Leave a Reply. |