CS138-lecture-20210420

Internet Protocol cont. #

Subnets cont. #

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There are 6 subnets.

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192.192.134.1/24 means that the first 24 bits are the subnet mask, it is the network part of the address. A smaller sub set of the larger network could possibly be 192.192.134.1/26.

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DHCP #

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The IP address 255.255.255.255 means that it will be broadcast to everyone in the network.

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Note: DHCP is in the application layer. DHCP uses UDP because of the fact that it needs to broadcast.

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When connecting to a network for the first time, the DHCP server will be the first to help you.

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NAT #

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Address shortage is the fact that there are only a finite number of IP addressed to be allocated.

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Solution 1 is manual configuration.

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ICMP #

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Note: ICMP is a network layer protocol but its used like a transport layer protocol.

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IPv6 #

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QoS = quality of service

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