The subnet calculator allows the use of a single subnet bit - for example, a class C address with a subnet mask of 255.255.255.128 is permitted. The subnet calculator allows a subnet ID to have its final octet equal to the final octet of its subnet mask - for example, a class C network address of 192.168.0.192 with a subnet mask of 255.255.255

The CIDR number comes from the number of 1's in the subnet mask when converted to binary. The common subnet mask 255.255.255.0 is 11111111.11111111.11111111.00000000 in binary. This adds up to 24 1's, or /24 (pronounced 'slash twenty four'). Oct 30, 2018 · Given an IP address of 192.168.1.42 255.255.255.248, what is the subnet address?A . 192.168.1.8/29B . 192.168.1.32/27C . 192.168.1.40/29D . 192.168.1.16/28E . 192.168.1.48/29 View Answer Answer: C Explanation: 248 mask uses 5 bits (1111 1000) 42 IP in binary is (0010 1010) The base subnet therefore is the lowest binary value that can be written withoutContinue reading Size: 1. Netmask: 255.255.255.255 or /32 Any address. Note: This is a rather small subnet. Size: 2. Netmask: 255.255.255.254 or /31 Starts with even address. IP/mask Up to the last IP in the subnet Mask Address count Class; a.b.c.d/32 +0.0.0.0: 255.255.255.255: 1: 1 / 256 C: a.b.c.d/31 +0.0.0.1: 255.255.255.254: 2: 1/128 C Netmask Conversions If you have ever needed to know what a netmask looks like expressed in some other format this table of equivalents should help. Oct 09, 2019 · Let's use IP address 192.168.10.44 with subnet mask 255.255.255.248 or /29. STEP 1: Convert to Binary. STEP 2: Calculate the Subnet Address. To calculate the IP Address Subnet you need to perform a bit-wise AND operation (1+1=1, 1+0 or 0+1 =0, 0+0=0) on the host IP address and subnet mask. The result is the subnet address in which the host is Jul 01, 2020 · A Subnet mask is a 32-bit number that masks an IP address, and divides the IP address into network address and host address. Subnet Mask is made by setting network bits to all "1"s and setting host bits to all "0"s.

IP/mask Up to the last IP in the subnet Mask Address count Class; a.b.c.d/32 +0.0.0.0: 255.255.255.255: 1: 1 / 256 C: a.b.c.d/31 +0.0.0.1: 255.255.255.254: 2: 1/128 C

May 29, 2020 · But because this is a Class C network, the default subnet mask of 255.255.255.0 allows all computers on the network to be peers (to send messages directly to each other) by default. The first four bits of 192.168.1.0: Aug 10, 2005 · Class C Subnet Effective Effective Number of Subnet Bits Mask Subnets Hosts Mask Bits ----- ----- ----- ----- ----- 1 255.255.255.128 2 126 /25 2 255.255.255.192 4 62 /26 3 255.255.255.224 8 30 /27 4 255.255.255.240 16 14 /28 5 255.255.255.248 32 6 /29 6 255.255.255.252 64 2 /30 7 255.255.255.254 128 2* /31

If you get a subnet like 192.168.0.0 with a mask 255.255.255.192, without hesitation you must calculate 256 - 192 = 64 hosts per subnets ( subtract 2 for bcast and network) 255.255.255.128 = 256 - 128 = 128 - 2

May 07, 2012 · These are actually fairly straightforward calculations. The easiest way to do it is to depict both the ip address and the subnet mask in binary. Take 76.127.231.231 with subnet mask 255.255.255.248 listed in binary: ip address: 01001100.01111111.11100111.11100111 subnet mask: 11111111.11111111.11111111.11111000 Address: 192.168.0.1 11000000.10101000.00000000 .00000001 Netmask: 255.255.255.0 = 24 11111111.11111111.11111111 .00000000 Wildcard: 0.0.0.255 00000000.00000000 Secondly, it will have a another address in front of it like 203.1.1.11 255.255.255.255 Please update your question with this information. The 255.255.255.255 refers specifically to the subnet mask and not an IP address. This tells the router how many bits are being used for the specified subnet. Aug 26, 2011 · CIDR. Subnet Mask. Total IPs. Usable IPs /32: 255.255.255.255: 1: 1 /31: 255.255.255.254: 2: 0 /30: 255.255.255.252: 4: 2 /29: 255.255.255.248: 8: 6 /28: 255.255.255