Discussion Board 4
Methodology for Determining the Network address for Internet Protocol (IP) address is 172.30.201.2.
The first step involves the finding the address class of the IP address. There are four different classes of IP addresses. The first one, class A, has addresses beginning from 1 to 126. Class b has the addresses beginning with 128 to 191; class C has addresses beginning with 192 to 223; class D has addresses beginning with224 to 239 and class D has addresses beginning with 240 to 254. Each class has different ways of ascertain the network address. The first set of values in class A determines the network address, for class B the first two set of values determine the network address (Pardoe and Synder, 2005). In class C, the first three set of values represent the network address. Thus, for the address 172.30.201.2, it is evident that the IP address is of class B since the addresses beings with 173, which is in the range of 128 to 191. Further, for class B the first two set of values represent the network address, thus, the network address for the IP address 172.30.201.2 will be 173.30.
The network provided 130.16.0.0 represent class B IP address. Thus, the subnetting has to follow a certain procedure. To subnet a class B network, one has to work on the third set of values or octet, since the first two octets represent the network address. The bits available for host addressing in class B network are 16 bits (14 bits available for subnetting and 2 bits available for host addressing). To create 160 subnets, 8 bits are required (128+64+ 32+ 16+8+4+2+1-95=160subnets). Adding a 6 high order bits to create the subnet mask = 128+64+32+16+4+2=254.
References
Pardoe, T. D., & Snyder, G. (2005). Network security. Clifton Park, N.Y. [u.a.: Thomson.
