Merge pull request #278175 from derekolo/patch-3

Update expressroute-howto-add-gateway-portal-resource-manager.md

Author: prmerger-automator[bot]

articles/expressroute/expressroute-howto-add-gateway-portal-resource-manager.md

@@ -55,7 +55,7 @@ The steps for this tutorial use the values in the following configuration refere
 
 1. The **Name** for your subnet is automatically filled in with the value 'GatewaySubnet'. This value is required in order for Azure to recognize the subnet as the gateway subnet. Adjust the autofilled **Address range** values to match your configuration requirements. **You need to create the GatewaySubnet with a /27 or larger** (/26, /25, and so on.). /28 or smaller subnets are not supported for new deployments. If you plan on connecting 16 ExpressRoute circuits to your gateway, you **must** create a gateway subnet of /26 or larger.
 
-    If you're using a dual stack virtual network and plan to use IPv6-based private peering over ExpressRoute, select **Add IP6 address space** and enter **IPv6 address range** values.
+    If you're using a dual stack virtual network and plan to use IPv6-based private peering over ExpressRoute, select **Add IPv6 address space** and enter **IPv6 address range** values.
 
     Then, select **OK** to save the values and create the gateway subnet.