Since this is a class C network address, the host id is 24, the network id is 201.123.87.0
An "ip address" is a complete source or destination address that has a network id portion and a client or host portion. The network id is just a piece of the IP address. So, a public ip is an IP address that can be routed, whereas the network id is just a part of the public ip. They aren't different; the network id is part of the ip address.
Host ID
An IP address has 2 levels of hierarchy: network ID and host ID. The network ID identifies the network the host is connected to .The host ID identifies the host on the network.In your computer, in order to know the IP address of the system, use the run prompt in which ipconfig/all command will give the ip address of the system.Answer 2:To find out your external ip which is what is really important if you are doing port forwarding and other tasks use the site: whatismyip.com.
Class A
ForClass Ahost ID will be 8 / 24
The subnet mask is used for this purpose; it divides the IP address into two parts, the network id, and the host id.
To find the Network ID and Host ID from an IP address you need to use a Subnet Mask. The address 220.43.6.8 is a class C IP address (Since the range of Class C address is 192.0.0.0 to 223.255.255.255).The standard default mask for class C is 255.255.255.0Network address = (IP address) Boolean AND (Subnet mask)Hence,network address = 220.43.6.8 AND 255.255.255.0 = 220.43.6(since 255 means all 1s in binary, hence it'll give the same bits which are ANDed with it, whereas 0 means all 0s in binary, hence it'll give answer as 0 irrespective of what bits are ANDed with it)Hence Host Address would be the remaining part of IP address = 8
Assuming that the IP address is a classfull IP, we know that it is a Class B address because a Class B IP address ranges from 128 - 191. In a class B address the default subnet mask is 255.255.0 (or /16). Therefore the net ID would be 137.56.0.0 and the Host ID would be x.x.8.6. "x" meaning the network ID.
class A
A subnet mask is used for this purpose.
No, MAC addresss and IP address are not the same. MAC addresses are "hard-coded" into the Network Interface Card (NIC) and only ID that individual card. The IP address is software generated and ID's both the network and the individual host.
An identifier for a host. A host ID uniquely identifies a host within an address family on a network but does not identify the network. A host ID is not necessarily sufficient to establish communications with a host. foe example:- In a class C IP address say, 192.52.56.8 the first 3 octets denote the net ID while the last octet shows the host ID.