The VLANs behind R4 will have 20 servers, the smallest subnet we can use is a /27 which allows 30 usable IP addresses. In between the routers, we can use /30 since it allows 2 usable IP addresses. I decided to start with 77.60.30/30 since we used the 18.104.22.168 – 22.214.171.124 space for these four sites.
34 rows IP Subnet Calculator A subnet is division of an IP network (internet protocol suite), where an IP network is a set of communications protocols used on the Internet and other similar networks. It is commonly known as TCP/IP (Transmission Control Protocol/Internet Protocol). Subnet Mask Cheat Sheet - kthx.at 122 rows Subnet Calculator for IP Addresses and Subnetting ONLINE!
ip - 32 bits or 30 bits for subnet mask - Network
Aug 06, 2019
Subnet delegation: A subnet may optionally have one or more delegations enabled for it. Subnet delegation gives explicit permissions to the service to create service-specific resources in the subnet using a unique identifier during service deployment. To delegate for a service, select the service you want to delegate to from the Services list.
Host and Subnet Quantities - Cisco