Added that UDP port 4791 is reserved for the host

Author: davegoddard

articles/virtual-network/virtual-networks-faq.md

@@ -124,7 +124,7 @@ No. Multicast and broadcast are not supported.
 
 You can use TCP, UDP, ESP, AH, and ICMP TCP/IP protocols in virtual networks.
 
-Unicast is supported in virtual networks. Multicast, broadcast, IP-in-IP encapsulated packets, and Generic Routing Encapsulation (GRE) packets are blocked in virtual networks. You can't use Dynamic Host Configuration Protocol (DHCP) via Unicast (source port UDP/68, destination port UDP/67). UDP source port 65330 is reserved for the host.
+Unicast is supported in virtual networks. Multicast, broadcast, IP-in-IP encapsulated packets, and Generic Routing Encapsulation (GRE) packets are blocked in virtual networks. You can't use Dynamic Host Configuration Protocol (DHCP) via Unicast (source port UDP/68, destination port UDP/67). UDP ports 4791 and 65330 are reserved for the host.
 
 ### Can I deploy a DHCP server in a virtual network?