HI @Rajesh Swarnkar Yes. Azure reserves the first four and last IP address for a total of 5 IP addresses within each subnet. For example, the IP address range of 192.168.1.0/24 has the following reserved addresses:
- 192.168.1.0 : Network address
- 192.168.1.1 : Reserved by Azure for the default gateway
- 192.168.1.2, 192.168.1.3 : Reserved by Azure to map the Azure DNS IPs to the VNet space
- 192.168.1.255 : Network broadcast address.
So in your case with subnet 10.201.49.0/26, those are the ip reserved: 10.201.49.0 Network address 10.201.49.1 Reserved by Azure for the default gateway 10.201.49.2-10.201.49.3 Reserved by Azure to map the Azure DNS IPs to the VNet space 10.201.49.63 Network broadcast address. Hope this helps Cheers Luca