1 255.255.255.255 represents the local broadcast address, which is only propagated within the network. This broadcast data cannot cross routers by default. That is, it is a restricted broadcast address. For the local host, this address refers to all hosts in the network segment (same broadcast domain).
Q# 1 - Now can PC connected to my router which has a subnet mask of 255.255.255.255 connect to PC3 connected to router1 which is another home taking internet from the same ISP with random IP and subnet mask of 255.255.255.255 connect? The subnet mask doesn't matter.
1 255.255.255.255 is a broadcast address same as 0.0.0.0 if you want two endpoints the subnet mask would be 255.255.255.254 (however this still won't do what you are asking. What you are asking for is VLANs or PVLANs (virtual or private lans). This would require hardware capable of layer2 switching and VLAN support at least.
255.255.255.0 allows for a total of 254 IP addresses to be used. 1 is for the subnet itself and another for the broadcast. Best example of this is the network 192.168.1.0.
What is the diference between IP subnet mask 255.255.254 .0 ... or 255 ...
Most probably, you are after a subnet mask of 255.255.255.0. A subnet mask refers to the practice of subnetting, which is, from my understanding of it, a way of dividing one network into smaller logical networks.
What is a subnet mask, and the difference between a subnet mask of 255 ...
For example, when you use 65.182.174.0 mask 255.255.255.0, that actually means you want the route to match 65.182.174.
1 If your device lets you enter 255.255.255.255 as the subnet mask it won't be able to communicate with other devices on the network.
I understand it has something to do with subnet masks, but my question is different. Let's say one of /24 ip address is 124.125.126.* with subnet mask 255.255.255.0, and it can have 256-2 hosts. I am assuming we are talking about public ips here. What does hosts mean here? Is it 254 router can be assigned public ips here?
So if your router has decided to use a subnet mask of 255.255.255.0 and to give you an IP address of 10.0.1.4, that means it is going to be handing out IP addresses in the range from 10.0.1.1 through 10.0.1.254 (potentially) to other computers which request an address.
I was just wondering about this question above and I would greatly appreciate it if someone can explain why 255.255.249.0 isn't a valid subnet mask.
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