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9 Cards in this Set
- Front
- Back
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IPv4 Address Classes |
A: 1-127, 255.0.0.0, \8 B: 128-191, 255.255.0.0, \16 C:192-223, 255.255.255.0, \24 D:224-239 |
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IPv4 Subnet Mask Values |
On Bits Value 8 255 7 254 6 252 5 248 4 240 3 224 2 192 1 128 0 0 |
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Calculating Hosts/ Networks per Subnet |
-Take number of bits "borrowed" for sub-netting within the last octet=(x) -Number of subnets = 2^x Take the number of bits remaining for host addressing from all octets=(h) -Number of hosts per subnet = 2^h - 2 Less subnets= more hosts per subnet |
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Simple Sub-netting Chart |
Use to answer sub-netting questions 8 7 6 5 4 3 2 1 <---Bits 128 64 32 16 8 4 2 1 <--- Value |
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Subnet ID/ Broadcast ID |
-The first address in a sub-net is the sub-net ID, it identifies the given subnet -The final address in a sub-net is the broadcast ID, it is used to broadcast frames to all the nodes in the subnet |
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Unicast Address |
Used to transmit data to a single, specific host |
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Broadcast Address |
Used to transmit data to all members of a network |
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Multicast Address |
Used to send one message (or set of packets) to multiple hosts across multiple networks Multicast Address range is 224-239 in the first octet |
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IPv4 Private Addresses |
These addresses are NOT ROUTABLE on the public internet, uses NAT to allow access to/through the public internet. Known as RFC 1918 A: 10.0.0.0 - 10.255.255.255 B: 172.16.0.0 - 172.31.255.255 C: 192.168.0.0 - 192.168.255.255 |
