Lecture CCNA Exploration 4.0 (Kỳ 2) - Chapter 2: Static Routing

This chapter define the general role a router plays in networks, describe the directly connected networks, different router interfaces, examine directly connected networks in the routing table and use the CDP protocol, describe static routes with exit interfaces,... Inviting you to refer.
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Lecture CCNA Exploration 4.0 (Kỳ 2) - Chapter 2: Static Routing Chapter 2 - Static Routing CCNA Exploration 4.0 1 Objectives • Define the general role a router plays in networks. • Describe the directly connected networks, different router interfaces • Examine directly connected networks in the routing table and use the CDP protocol • Describe static routes with exit interfaces • Describe summary and default route • Examine how packets get forwarded when using static routes • Identify how to manage and troubleshoot static routes Học viện mạng Bach Khoa - Website: www.bkacad.com 2 Routers and Network Học viện mạng Bach Khoa - Website: www.bkacad.com 3 Role of the Router • Routers are primarily responsible for interconnecting networks by: 1. Determining the best path to send packets 2. Forwarding packets toward their destination Học viện mạng Bach Khoa - Website: www.bkacad.com 4 Role of the Router • The router's routing table is used to find the best match between the destination IP of a packet and a network address in the routing table. Học viện mạng Bach Khoa - Website: www.bkacad.com 5 Introducing the topology 2.1.2 Học viện mạng Bach Khoa - Website: www.bkacad.com 6 Introducing the topology 2.1.2 Học viện mạng Bach Khoa - Website: www.bkacad.com 7 Reference: Cisco router 1841’s Component Product Description Quantity Modular Router w/2xFE, 2 WAN slots, 32 CISCO1841 FL/128 DR 1 CAB-ACE Power Cord Europe 1 S184IPB-12406T Cisco 1841 IOS IP BASE W/O CRYPTO 1 WIC-2T 2-Port Serial WAN Interface Card 1 V.35 Cable, DCE Female to Smart Serial, 10 CAB-SS-V35FC Feet 2 CAB-SS-V35MT V.35 Cable, DTE Male to Smart Serial, 10 Feet 2 MEM1800-32CF 32MB Cisco 1800 Compact Flash 1 ROUTER-SDM-CD CD for SDM software 1 CON-OSP- CISCO1841 ONSITE 24X7X4 Modular Router w/2xF 1 Học viện mạng Bach Khoa - Website: www.bkacad.com 8 Cable Standards 2.1.3.1 Học viện mạng Bach Khoa - Website: www.bkacad.com 9 Cable Standards Học viện mạng Bach Khoa - Website: www.bkacad.com 10 Cable for LAN/WAN interfaces Học viện mạng Bach Khoa - Website: www.bkacad.com 11 Examining the Connections of the Router • DB-60 port and Smart port (five-in-one serial port) support the EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA/TIA-530 standards Học viện mạng Bach Khoa - Website: www.bkacad.com 12 Examining the Connections of the Router • Straight through: – Switch-to-Router, Switch-to-PC, Router-to-Server, Hub-to-PC, Hub- to-Server • Cross-over: – Switch-to-Switch, PC-to-PC, Switch-to-Hub, Hub-to-Hub, Router-to- Router Học viện mạng Bach Khoa - Website: www.bkacad.com 13 Lab 2.1.3.2 Học viện mạng Bach Khoa - Website: www.bkacad.com 14 Router Configuration Review Học viện mạng Bach Khoa - Website: www.bkacad.com 15 Examining Router Interfaces 2.2.1 1. show ip route command – used to view routing table 2. show interfaces command – used to show status of an interface 3. show ip interface brief command – used to show a portion of the interface information 4. show running-config command – used to show configuration file in RAM Học viện mạng Bach Khoa - Website: www.bkacad.com 16 Q/A R1#show interfaces fastethernet 0/0 FastEthernet0/0 is administratively down, line protocol is down Học viện mạng Bach Khoa - Website: www.bkacad.com 17 Configuring an Ethernet Interface R1(config)#interface fastethernet 0/0 2.2.2.1 R1(config-if)#ip address 172.16.3.1 255.255.255.0 R1(config-if)#no shutdown The following message is returned from the IOS: *Mar 1 01:16:08.212: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up *Mar 1 01:16:09.214: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up Học viện mạng Bach Khoa - Website: www.bkacad.com 18 Configuring an Ethernet Interface What is a problem ? Học viện mạng Bach Khoa - Website: www.bkacad.com 19 Logging Synchronous Command Học viện mạng Bach Khoa - Website: www.bkacad.com 20