1. Chapter 9 & 10 TCP/IP

2. TCP/IP Model Application Transport Internet Internet Access

3. Application Layer Protocols - 7 FTP – 21 Telnet – 23 SMTP – 25 DNS – 53 TFTP – 69 SNMP – 161

4. Transport Layer Protocols – 4 TCP – What are its functions? UDP – How does it differ from TCP?

5. Network Layer Protocols – 3 IP RIP, IGRP, OSPF ICMP PING

6. Network Access – 1&2 MAC Ethernet IEEE 802.X FDDI Token Ring Topology Logical Physical

7. ARP Address Resolution Protocol Given an IP Address, what is the MAC? ARP tables kept by Routers From DOS prompt ARP –a At router Show ARP To rebuild ARP table, Clear ARP To start use PING

8. Testing Connectivity PING Trace Trace * * *

9. TCP/IP Subnetting Create a group of subnets from one large network address. Subnets have an address – all host bits are zeros. Subnets have a broadcast address – all host bits are ones. Useable address ranges are the bits in-between What would be the flooded broadcast address for 152.43.0.0? What would be the directed broadcast address of address 195.23.74.83 SN Mask 255.255.255.192?

10. Host Tables IP host command Router(config)#ip host ip address(es) Example: Ip host ATC 152.43.61.1 175.6.34.7

11. Name Server Configuration Supplies DNS server addresses to routers Ip name-server Example: Ip name-server 152.43.29.51 152.43.29.52

12. Turn Off DNS DNS turned on by default If turned off, restart by- Router(config)#ip domain-lookup Turn off with- Router(config)#no ip domain-lookup To see host table: Router#show hosts

13. Connectivity Testing PING – ICMP Echo request Trace – uses host name Telnet (most complete)