This PPT will discuss Implement Inter-VLAN Routing in detail.
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Version 4.0 CISCO Implement Inter- VLAN Routing LAN Switching and Wireless — Chapter 6 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public
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Objectives Explain to the satisfaction of a qualified instructor how network traffic is routed between VLANs in a converged network. Configure inter-VLAN routing on a router to enable communications between end-user devices on separate V LANs Troubleshoot common inter-VLAN connectivity issues. 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public
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Explain How Network Traffic is Routed Between VLANs in a Converged Network Describe the routing options between VLANs Traditional Inter-VLAN Routing F014 FOF2013 FOM 172.17.10.1/24 FOIO FOM Trunk F016 F015 F014 F013 Z F012 Trunk FO/2 Trunk PCI 172.17.10.21 F013 FOIII F016 172.17.20.22 2006 Cisco Systems. Inc. All rights resen.;ecl. PC3 172.17.30.23 Cisco Public 172.17.30.1/24 Switch Sl Ports FO/6 = VLANIO F015 = VLAN30 FO/1-FO/4 = Trunk Switch S2 Ports FO/II = VI-ANIO FO/18 = VLAN 20 FO/6 = VLAN30 F011-FO/4 = Trunk 3
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Explain How Network Traffic is Routed Between VLANs in a Converged Network Describe the role of interfaces and subinterfaces in supporting inter-VLAN routing 'Router-on-a-Stick' Inter-VLAN Routing 2006 Cisco Systems. Inc. All rights resen.;ecl. FO/O.IO FO/O.30 FOM FOI 14 f FOF2013 Trunk Trunk F016 F015 F014 F013 F0/1 Trunk PCI 172.17.10.21 Trunk F014 F012 F013 F016 FO 18 172.17.20.22 RI Subinterfaces FO/O.IO: 172.17.10.1 FO/O.20: 172.17.20.1 FO/O.30: 172.17.30.1 Switch Sl Ports FO/1-FO/4 = Trunk FO/5 = Trunk Switch S2 Ports FO/11 = VLANIO FO/18 = VLAN20 F016 = VLAN30 FO/1-FO/4 = Trunk p C3 172.17.30.23 Cisco Public 4
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Configure Inter-VLAN Routing Describe the steps to configure inter-VLAN routing Configuring Traditional Inter-VLAN Routing RI # configure terminal 172.17.10.1/24 FOIO VI-AN 10 F014 172.17.10.21 Switch Configuration F011 FO/5 F016 172.17.30.1/24 VI-AN 30 PC3 172.17.30.23 Enter configuration commands r one per line. End with CNTL/Z. RI (config) {interface fO/O RI (config-if) address 172.17.10.1 255.255.255.0 RI (config—if) #no shutdown Interface FastEthernet0/0, changed state to up Line protocol on Interface FastEthernet0/0, changed state to up RI (config—if) #interface fO/1 RI (config-if) address 172.17.30.1 255.255.255.0 RI (config—if) shutdown %LINK—5—CHANGED: Interface FastEthernet0/1, changed state to up Line protocol on Interface FastEthernetO/1, changed state to up RI (config—if) #end RI #copy running—config startup—config Router Interface Configuration 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public 5
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Configure Inter-VLAN Routing Describe the steps to configure inter-VLAN routing Configuring Router-on-a-Stick Inter-VLAN Routing Subinterfaces FO/O.IO: 172.17.10.1/24 FO/O.30: 172,17.30.1/24 FOIO Trunk F015 VLANIO FO/11 172.17.10.21 VLAN30 PC3 172.17.30.23 RI # configure terminal F016 Enter configuration commands, one per line. End with CNTL/Z. RI (config) #interface fO/O .10 RI (config—subif) #encapsulation dotlq 10 RI address 172.17.10.1 255.255.255.0 RI (config—subif) #interface fO/O .30 RI (config—subif) #encapsulation dotlq 30 RI (config-subif) address 172.17.30.1 255,255.255. O RI (config—subif) #interEace EO/O RI (config—if) shutdown Interface FastEthernetO/Or changed state to up Line protocol on Interface FastEthernetO/C, changed state to up Interface FastEthernetO/O . 10, changed state to up Line protocol on Interface FastEthernetO/C . changed state to up Interface FastEthernetO/O . 30, changed state to up Line orotocol on Interface FastEthernet0/C .30 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public 6
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Troubleshoot Common Inter-VLAN Connectivity Issues Describe the common switch configuration Issues Switch Configuration Issues 172.17.10.1/24 RI FOIO Default VI-AN FO/4 VLANIO PCI 172.17.10.21 F0/1 F015 F016 172.17.30.1/24 VLAN30 PC3 172.17.30.23 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public 7
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Troubleshoot Common Inter-VLAN Connectivity Issues Describe the common router configuration issues Verify Router Configuration RI #show interface FastEthernet0/O .10 is up, line protocol is down (disabled) Encapsulation 802 . IQ Virtual LAN, VI an ID 100 ARP type: ARPA, ARP Timeout 04:00:00, Last clearing of "show interface" counters never RI # show run Building configuration... Current configuration 505 bytes interface FastEthernetO/O .10 encapsulation dot IQ 100 ip address 172.17.10.1 255.255.255.0 interface FastEthernet0/0.30 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public 8
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Troubleshoot Common Inter-VLAN Connectivity Issues Describe the common IP Addressing Issues IP Addressing Issues 172.17.100.1124 VLANIO 172.17.10.0 • PCI 172.17.10.21/24 81 FO/O FO/4 FOII FO/5 FO/6 172.17.30.1/24 VLAN30 172.17.30.0 pc3 172.17.30.23/24 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public 9
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Summary • Inter-VLAN routing is the process of routing information between VLANs • Inter-VLAN routing requires the use of a router or a layer 3 switch Traditional inter-VLAN routing Requires multiple router interfaces that are each connected to separate VLANs 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public
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Summary Router on a stick this is an inter-VLAN routing topology that uses router sub interfaces connected to a layer 2 switch. Each Subinterface must be configured with: An IP address Associated VLAN number Configuration of inter VLAN routing —Configure switch ports connected to router with correct VLAN —Configure each router subinterface with the correct IP address & VLAN ID Verify configuration on switch and router 2006 Cisco Systems. Inc. All rights resen.;ecl. Cisco Public
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CISCO 2006 Cisco Sysiems. Inc. All rights resen.yed. Cisco Public 12
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