title: Azure Network Security Group Vs Route Tables
body: <p>Networking newbie here. From the Documentation it feels like both NSG and Routing tables(UDR) are doing the same thing - capable of defining ACLs at multiple levels (Vnet, Subnet, VM)</p>
  <p><a href="https://docs.microsoft.com/en-us/azure/virtual-network/network-security-group-how-it-works" rel="nofollow noreferrer">https://docs.microsoft.com/en-us/azure/virtual-network/network-security-group-how-it-works</a>
  <a href="https://docs.microsoft.com/en-us/azure/virtual-network/virtual-networks-udr-overview" rel="nofollow noreferrer">https://docs.microsoft.com/en-us/azure/virtual-network/virtual-networks-udr-overview</a></p>
  <p>So how are they different and when is each used?</p>
  <p>thanks.</p>