- Level: Intermediate
- Presenter: Eli the Computer Guy
- Date Created: November 19, 2010
- Length of Class: 69 Minutes
Purpose of Class
- This class teaches students about the components and concepts in a TCP/IP network.
- TCP/IP Overview (2:32)
- How TCP/IP Works (16:53)
- TCP/IP Numbering (43:00)
- Subnet Masking (48:17)
- Final Thoughts (64:03)
- 1. TCP/IP
- Is technically a Protcol Suite
- IP Routes Traffic
- Layer 3 OSI Model Network
- Routable Networks (sub networks)
- TCP controls transmission between connected systems
- Layer 4 OSI Model Transport
- Windowing is the process of sending data from one computer to another in TCP/IP version 4
- 2. How TCP/IP Works
- IP Addresses – Every device on a TCP/IP network needs an individual IP Address
- DNS (Domain Name Service/Server) resolves Domain names into IP Addreses
- DHCP (Dynamic Host Control Protcol) Servers automatically assign IP information to clients for a specific time period (Lease). Clients try to renew leases at 50% expiration point.
- Default Gateway (Router) connects networks. If an IP Address cannot be found on the local network the computer tries to use the Default Gateway to find the target.
- Subnets and Subnet Masking – Subnets are individual networks. Subnet Masks divide IP Addresses in Subnet Number and Host Number
- What the Number Mean
- IP Addresses and Subnet Masks are made of 4 Octets of Bits
- Subnet Masking
- IP Addresses contain the Subnet Number and Host Number. The Subnet Mask tells you where the subnet number ends and the host number begins.
- Classful Networks A, B, C,D,E Gone now use CIDR
- The Highest Address in a Subnet Range is the Broadcast address
- To determine the number of subnets (n is the number of bits used)= 2n
- To determine number of Hosts = 2n -2