# Finding the address slide show

## by jpb232 on Jul 11, 2012

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## Finding the address slide showWebinar Transcript

• Finding The Network Address The Next Few Slides Will Show You How to Find the Network ID of an IP Address
• Remember this fundamental relationship!By User:Gerson Chicareli.Kbrose at en.wikipedia [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)],from Wikimedia Commons
• Finding Network Address Find the network address for the IP address – 192.175.33.18 with a mask of 255.255.255.0. Find the network address for 192.175.33.30 with a mask of 255.255.255.240. How to determine if they have the same network address.
• Finding Network AddressFind the Network Address for the IP Address – 192.175.33.18 With a Mask of 255.255.255.0
• Finding Network Address Given – 192.175.33.18 mask 255.255.255.0Step 1: convert the IP 192.175.33.18 to binary 192 . 175 . 33 . 18 11000000 . 10101111 . 00100001 . 00010010
• Finding Network Address Given – 192.175.33.18 mask 255.255.255.0Step 2: convert the subnet mask to binary 255 . 255 . 255 . 011111111 . 11111111 . 11111111 . 00000000
• Finding Network Address Given – 192.175.33.18 mask 255.255.255.0Step 3: align the subnet mask to the IP address 192 . 175 . 33 . 1811000000 . 10101111 . 00100001 . 0001001011111111 . 11111111 . 11111111 . 00000000 255 . 255 . 255 . 0
• Finding Network AddressAny 0 in the subnet mask identifies the host bits in the IP address 192 . 175 . 33 . 1811000000 . 10101111 . 00100001 . 0001001011111111 . 11111111 . 11111111 . 00000000 255 . 255 . 255 . 0
• Finding Network Address Any 1 in the subnet mask identifies the network bits in the IP address 192 . 175 . 33 . 1811000000 . 10101111 . 00100001 . 0001001011111111 . 11111111 . 11111111 . 00000000 255 . 255 . 255 . 0
• Finding Network AddressStep 4: in the IP address change all the host bits to zero’s 192 . 175 . 33 . 18 11000000 . 10101111 . 00100001 . 00010010 11111111 . 11111111 . 11111111 . 00000000 255 . 255 . 255 . 0
• Finding Network AddressStep 4: in the IP address change all the host bits to zero’s 192 . 175 . 33 . 18 11000000 . 10101111 . 00100001 . 00000000 11111111 . 11111111 . 11111111 . 00000000 255 . 255 . 255 . 0
• Finding Network Address Given – 192.175.33.18 mask 255.255.255.0Step 5: convert the binary IP back to decimal 11000000 . 10101111 . 00100001 . 00000000 192 172 33 0
• Finding Network AddressThe network address or network ID for 192.175.33.18 with a subnet mask 255.255.255.0192 172 33 0
• Finding Network AddressFind the Network Address for192.175.33.30 With a Mask of 255.255.255.240
• Finding Network Address Given – 192.175.33.30 mask 255.255.255.240Step 1: convert the IP 192.175.33.30 to binary 192 . 175 . 33 . 30 11000000 . 10101111 . 00100001 . 00011110
• Finding Network Address Given – 192.175.33.30 mask 255.255.255.240Step 2: convert the subnet mask to binary 255 . 255 . 255 . 24011111111 . 11111111 . 11111111 . 11110000
• Finding Network Address Given – 192.175.33.30 mask 255.255.255.240Step 3: align the subnet mask to the IP address 192 . 175 . 33 . 3011000000 . 10101111 . 00100001 . 0001111011111111 . 11111111 . 11111111 . 11110000 255 . 255 . 255 . 240
• Finding Network AddressAny 0 in the subnet mask identifies the host bits in the IP address 192 . 175 . 33 . 3011000000 . 10101111 . 00100001 . 0001111011111111 . 11111111 . 11111111 . 11110000 255 . 255 . 255 . 240
• Finding Network Address Any 1 in the subnet mask identifies the network bits in the IP address 192 . 175 . 33 . 3011000000 . 10101111 . 00100001 . 0001111011111111 . 11111111 . 11111111 . 11110000 255 . 255 . 255 . 240
• Finding Network Address Given – 192.175.33.30 mask 255.255.255.240Step 4: in the IP address change all the host bits to zero’s 192 . 175 . 33 . 30 11000000 . 10101111 . 00100001 . 00011110 11111111 . 11111111 . 11111111 . 11110000 255 . 255 . 255 . 240
• Finding Network Address Given – 192.175.33.30 mask 255.255.255.240Step 4: in the IP address change all the host bits to zero’s 192 . 175 . 33 . 30 11000000 . 10101111 . 00100001 . 00010000 11111111 . 11111111 . 11111111 . 11110000 255 . 255 . 255 . 240
• Finding Network Address Given – 192.175.33.30 mask 255.255.255.240Step 5: convert the binary IP back to decimal 11000000 . 10101111 . 00100001 . 00010000 192 . 175 . 33 . 16
• Finding Network AddressThe network address or network ID for 192.175.33.18 with a subnet mask 255.255.255.240192 172 33 16
• This concludes this portion of the lesson. Now please begin to work the problems.When complete, go on to the next portion ofthe lesson. If you have difficulty solving theproblems, go back and watch the steps in theprocess carefully. Remember, you must be comfortable usingbinary number before attempting thisproblems. The number one challenge students have insubnetting is that they are not comfortable withbinary numbers. Make sure YOU are not oneof them.