B's IP = 10.1.1.2 255.255.255.0 so it is on network 10.1.1.0. B compares A's IP with it's own subnet mask - 10.1.1.1 255.255.255.0 so B thinks A is on 10.1.1.0 which is the same network. So it can talk directly with A via the L2 switch. So even though they have different subnet masks they both think they are on the same subnet. Jon
More Information About Dns Servers Are On Different Subnets. If we detect that you have more than one name server in the same class C subnet (the first three numbers of their IP are the same), we will issue this warning. Having more than one (1) name server in the same class C subnet is not recommended, as this increases the likelihood of a Working with VPCs and subnets - Amazon Virtual Private Cloud Modify the subnet settings to specify that all instances launched in that subnet receive a public IPv4 address, or an IPv6 address, or both. For more information, see IP addressing behavior for your subnet. Create or modify your security groups as needed. Join to windows domain from different subnet
Jan 03, 2018
Techopedia: Educating IT Professionals To Make Smarter Subnet masks work because of the magic of Boolean logic. To best understand how a subnet mask actually does its thing, you must remember that a subnet mask is only relevant when getting to a subnet. In other words, determining what subnet an IP address lives on is the only reason for a subnet mask.
Sep 28, 2016
How to Connect Computers That Are on 2 Different Subnets How to Connect Computers That Are on 2 Different Subnets Step 1. Connect the computers to the network. Ensure that each connection eventually reaches a router or a routable Step 2. Connect the routers to each other. This step is only necessary if the two separate subnets … Different subnets in the same LAN - Network Engineering The PC's in the other subnet should be able to communicate with each other. However if they attempt to ping an IP on a different subnet, it won't work unless the default gateway is setup on the router and some form of routing (static/dynamic) is setup on the router. Understanding TCP/IP addressing and subnetting basics Dec 19, 2019 Communicating with devices on a different subnet - Super User