IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is...
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![Page 1: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/1.jpg)
• IP Addressing – Dotted-Decimal Notation– An IP address is 32 bits in size– Every IP address is grouped into four 8-bit
octets– Octets are separated by decimal points– Valid octet numbers range from 0 to 255 and
represent a binary number
![Page 2: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/2.jpg)
![Page 3: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/3.jpg)
• IP Addressing (cont.)– Each address consists of two parts: network id and host
id
– The network portion of an address indicates whether the device belongs to a Class A, B, C, D, or E network
– Some octet numbers are reserved for special functions
• Dotted decimal notation– “Shorthand” convention used to represent IP addresses
and make them more easily readable by people
![Page 4: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/4.jpg)
![Page 5: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/5.jpg)
![Page 6: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/6.jpg)
Network Mask• Network id – bits in IP address that match the 1’s in
the network mask• Host id – bits in IP address that match the 0’s in the
network mask• Broadcast address – Network id and all 1’s for host
id• Lowest IP address in network – Network id plus 1• Highest IP address in network – Broadcast address
minus 1• Number of addresses in network is 2n – 2 where n is
number of bits in host id
![Page 7: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/7.jpg)
Network Mask
11111111.11111111.11111111.00000000
255.255.255.0
Network ID Host ID
![Page 8: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/8.jpg)
![Page 9: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/9.jpg)
IP = 131.123.165.200MASK = 255.255.0.0 Network ID Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 10: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/10.jpg)
IP = 131.123.165.200MASK = 255.255.0.0 Network ID 131.123Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 11: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/11.jpg)
IP = 131.123.165.200MASK = 255.255.0.0 Network ID 131.123Host ID 165.200broadcast address highest address in subnet lowest address in subnet
number of addresses in subnet
![Page 12: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/12.jpg)
IP = 131.123.165.200MASK = 255.255.0.0 Network ID 131.123Host ID 165.200broadcast address 131.123.255.255highest address in subnet lowest address in subnet
number of addresses in subnet
![Page 13: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/13.jpg)
IP = 131.123.165.200MASK = 255.255.0.0 Network ID 131.123Host ID 165.200broadcast address 131.123.255.255highest address in subnet 131.123.255.254lowest address in subnet
number of addresses in subnet
![Page 14: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/14.jpg)
IP = 131.123.165.200MASK = 255.255.0.0 Network ID 131.123Host ID 165.200broadcast address 131.123.255.255highest address in subnet 131.123.255.254lowest address in subnet 131.123.0.1
number of addresses in subnet
![Page 15: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/15.jpg)
IP = 131.123.165.200MASK = 255.255.0.0 Network ID 131.123Host ID 165.200broadcast address 131.123.255.255highest address in subnet 131.123.255.254lowest address in subnet 131.123.0.1
number of addresses in subnet 65,534
![Page 16: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/16.jpg)
IP = 131.123.165.200MASK = 255.255.255.0 Network ID Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 17: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/17.jpg)
IP = 131.123.165.200MASK = 255.255.255.0 Network ID 131.123.165Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 18: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/18.jpg)
IP = 131.123.165.200MASK = 255.255.255.0 Network ID 131.123.165Host ID 200broadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 19: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/19.jpg)
IP = 131.123.165.200MASK = 255.255.255.0 Network ID 131.123.165Host ID 200broadcast address 131.123.165.255highest address in subnetlowest address in subnet
number of addresses in subnet
![Page 20: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/20.jpg)
IP = 131.123.165.200MASK = 255.255.255.0 Network ID 131.123.165Host ID 200broadcast address 131.123.165.255highest address in subnet 131.123.165.254lowest address in subnet
number of addresses in subnet
![Page 21: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/21.jpg)
IP = 131.123.165.200MASK = 255.255.255.0 Network ID 131.123.165Host ID 200broadcast address 131.123.165.255highest address in subnet 131.123.165.254lowest address in subnet 131.123.165.1
number of addresses in subnet
![Page 22: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/22.jpg)
IP = 131.123.165.200MASK = 255.255.255.0 Network ID 131.123.165Host ID 200broadcast address 131.123.165.255highest address in subnet 131.123.165.254lowest address in subnet 131.123.165.1
number of addresses in subnet254
![Page 23: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/23.jpg)
![Page 24: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/24.jpg)
![Page 25: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/25.jpg)
CIDR – Classless Inter-Domain Routing
• Notation - net-address/n where n=number of bits in network-id
• Alternative to “mask” notation
• E.g. 131.123.8.0/24 same as 131.123.8.0 with netmask 255.255.255.0
• 131.123/16 Kent State Univ. Network
• 131.123.8./22 College of Business
![Page 26: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/26.jpg)
IP = 131.123.165.200MASK = 255.255.254.0 Network ID Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 27: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/27.jpg)
IP = 131.123.165.200MASK = 255.255.254.0254 = 11111110165 = 10100101 Network ID 131.123.10100100.0 131.123.164.0
Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 28: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/28.jpg)
IP = 131.123.165.200MASK = 255.255.254.0254 = 11111110165 = 10100101 Network ID 131.123.10100100.0 131.123.164.0
Host ID 0.0.00000001.200 0.0.1.200
broadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 29: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/29.jpg)
IP = 131.123.165.200MASK = 255.255.254.0254 = 11111110165 = 10100101 broadcast address 131.123.10100101.255131.123.165.255
highest address in subnetlowest address in subnet
number of addresses in subnet
![Page 30: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/30.jpg)
IP = 131.123.165.200MASK = 255.255.254.0254 = 11111110165 = 10100101 broadcast address 131.123.10100101.255131.123.165.255highest address in subnet131.123.165.254lowest address in subnet131.123.164.1
number of addresses in subnet
![Page 31: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/31.jpg)
IP = 131.123.165.200MASK = 255.255.254.0254 = 11111110165 = 10100101
number of addresses in subnet
29-2 = 512-2 = 510
![Page 32: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/32.jpg)
IP = 131.123.165.200MASK = 255.255.255.128 Network ID Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 33: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/33.jpg)
IP = 131.123.165.200MASK = 255.255.255.128
128 = 10000000200 = 11001000 Network ID Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 34: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/34.jpg)
IP = 131.123.165.200MASK = 255.255.255.128
128 = 10000000200 = 11001000 Network ID 131.123.165.10000000 131.123.165.128Host IDbroadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 35: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/35.jpg)
IP = 131.123.165.200MASK = 255.255.255.128
128 = 10000000200 = 11001000 Network ID 131.123.165.10000000 131.123.165.128
CIDR notation 131.123.165.128/25
![Page 36: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/36.jpg)
IP = 131.123.165.200MASK = 255.255.255.128
128 = 10000000200 = 11001000 Network ID 131.123.165.10000000 131.123.165.128Host ID 0.0.0.01001000 0.0.0.72broadcast addresshighest address in subnetlowest address in subnet
number of addresses in subnet
![Page 37: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/37.jpg)
IP = 131.123.165.200MASK = 255.255.255.128
128 = 10000000200 = 11001000 Network ID 131.123.165.10000000 131.123.165.128Host ID 0.0.0.01001000 0.0.0.72broadcast address
131.123.165.11111111 131.123.165.255highest address in subnetlowest address in subnet
number of addresses in subnet
![Page 38: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/38.jpg)
IP = 131.123.165.200MASK = 255.255.255.128Network ID 131.123.165.10000000 131.123.165.128Host ID 0.0.0.01001000 0.0.0.72broadcast address
131.123.165.11111111 131.123.165.255highest address in subnet
131.123.165.254lowest address in subnet
131.123.165.129
number of addresses in subnet
![Page 39: IP Addressing – Dotted-Decimal Notation –An IP address is 32 bits in size –Every IP address is grouped into four 8-bit octets –Octets are separated by.](https://reader036.fdocuments.in/reader036/viewer/2022062714/56649d625503460f94a43c3b/html5/thumbnails/39.jpg)
IP = 131.123.165.200MASK = 255.255.255.128
highest address in subnet 131.123.165.254
lowest address in subnet 131.123.165.129
number of addresses in subnet 27-2 = 128-2 = 126