Skip to content

Ccna2 Case Study 1

 

Network Routing and Fundamentals Case Study 2

6.7Appendix 5c - Show IP ProtocolPage 206.8Appendix 5d - Show IP InterfacePage 236.9Appendix 5e - Show VersionPage 336.9.1Appendix 5f - Show HostsPage 366.9.2Appendix 5g - Show Startup-configPage 39

1.0 OVERVIEW AND OBJECTIVES

1.1Introduction

A unit has several people responsible for maintaining various sections of theinternetwork infrastructure. Many technicians have done an excellent job with thesmall portion for which they are responsible.One of the other network associates who was responsible for a larger portion of theinfrastructure was suddenly posted. This left redesign and implementation on thisportion of the internetwork unfinished. A technician is given the task to complete thedesign and implementation of the unfinished network.The few documents that existed were poorly written. So during the weekend thetechnician reconstructs the diagram from an existing diagram that was found. Itrepresents the new internetwork design. It shows the planned routers, hubs/switches, circuits, and the servers/ workstation at each site. The server at the center site is a file server accessed only by workstations on this internetwork. Theworkstation at the center site is used to manage all routers on the internetwork.After returning to work Monday morning, the technician presents the new diagram,shown at Figure 1 to their network infrastructure team leader that assigned theproject. After discussion, it is determined that the new documentation must bedeveloped for the project.

3

Phase I:

Project Description

Network address: 192.168.10.0
Number of subnets: 5
Routing protocol: RIPv1

Tabella 1: Indirizzzamento


Phase II:

IP Addressing

Topologia

Phase III:

Basic Router and Workstation Configuration

Tabella 2: Riepilogo configurazione apparati

1. Configurazione router PA (Boaz):

hostname PA ! enable secret 5 $1$Bb13$JLdhMHQVN3E6eJAf7mBln0 ! ip subnet-zero ip host CT 192.168.10.33 192.168.10.65 192.168.10.1 ip host PA 192.168.10.62 192.168.10.97 ip host ME 192.168.10.129 192.168.10.94 ip host server1 192.168.10.2 ip host workstation3 192.168.10.98 ip host workstation4 192.168.10.99 ! interface Ethernet0 description Interfaccia FastEthernet0/0 - Lan sede di Palermo ip address 192.168.10.97 255.255.255.224 ip access-group 100 in ! interface Serial0 description Interfaccia Serial0/0 - DTE verso sede di Catania ip address 192.168.10.62 255.255.255.224 ! interface Serial1 no ip address shutdown ! interface Serial2 no ip address shutdown ! interface Serial3 no ip address shutdown ! interface BRI0 no ip address shutdown ! router rip network 192.168.10.0 ! ip classless access-list 100 permit ip 192.168.10.96 0.0.0.3 host 192.168.10.2 access-list 100 permit icmp 192.168.10.96 0.0.0.3 any echo-reply banner motd ^C HighNet Spa - Sede di Palermo ^C ! line con 0 password router#PA0 login line aux 0 line vty 0 4 password router#PA0 login ! end

2. Configurazione router CT (Center):

hostname CT ! enable secret 5 $1$ET6C$S1tz/J89qwr.LF9omjAS01 ! ip subnet-zero ! interface Ethernet0 description Interfaccia FastEthernet0/0 - Lan sede di Catania ip address 192.168.10.1 255.255.255.224 ! interface Serial0 description Interfaccia Serial0/0 - DCE verso sede di Palermo ip address 192.168.10.33 255.255.255.224 clockrate 4000000 ! interface Serial1 description Interfaccia Serial0/1 - DCE verso sede di Messina ip address 192.168.10.65 255.255.255.224 clockrate 4000000 ! interface Serial2 no ip address shutdown ! interface Serial3 no ip address shutdown ! interface BRI0 no ip address shutdown ! router rip network 192.168.10.0 ! ip host CT 192.168.10.33 192.168.10.65 192.168.10.1 ip host PA 192.168.10.62 192.168.10.97 ip host ME 192.168.10.129 192.168.10.94 ip host nfs 192.168.10.2 banner motd ^C HighNet Spa - Sede di Catania ^C ! line con 0 password router#CT0 login line aux 0 transport input all line vty 0 password router#CT0 login length 25 line vty 0 4 password router#CT0 login ! end

3. Configurazione router ME (Eva):

hostname ME ! enable secret 5 $1$qQfq$GJEjOjml7GVlLqE09IU5q1 ! memory-size iomem 25 ip subnet-zero ip host workstation6 192.168.10.131 ip host workstation5 192.168.10.130 ip host CT 192.168.10.33 192.168.10.65 192.168.10.1 ip host PA 192.168.10.62 192.168.10.97 ip host ME 192.168.10.129 192.168.10.94 ip host nfs 192.168.10.2 ! ! interface FastEthernet0 description Interfaccia FastEthernet0/0 - Lan sede di Messina ip address 192.168.10.129 255.255.255.224 ip access-group 101 in speed auto ! interface Serial0 description Interfaccia Serial0/0 - DTE verso sede di Catania ip address 192.168.10.94 255.255.255.224 ! router rip network 192.168.10.0 ! ip classless no ip http server ! access-list 101 permit ip 192.168.10.128 0.0.0.3 host 192.168.10.2 access-list 101 permit icmp 192.168.10.128 0.0.0.3 any echo-reply banner motd ^C HighNet Spa - Sede di Messina ^C ! line con 0 password router#ME0 login line aux 0 line vty 0 4 password router#ME0 login ! end

Phase IV:

Access Control Lists

Riportate nella sezione successiva

Phase V:

Documenting the Network

PA:

PA#show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port ID CT Ser 0 140 R 2520 Ser 0 PA#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR Gateway of last resort is not set 192.168.10.0/27 is subnetted, 5 subnets C 192.168.10.96 is directly connected, Ethernet0 R 192.168.10.64 [120/1] via 192.168.10.33, 00:00:15, Serial0 C 192.168.10.32 is directly connected, Serial0 R 192.168.10.0 [120/1] via 192.168.10.33, 00:00:15, Serial0 R 192.168.10.128 [120/2] via 192.168.10.33, 00:00:15, Serial0 PA#show ip protocol Routing Protocol is "rip" Sending updates every 30 seconds, next due in 17 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Redistributing: rip Default version control: send version 1, receive any version Interface Send Recv Key-chain Ethernet0 1 1 2 Serial0 1 1 2 Routing for Networks: 192.168.10.0 Routing Information Sources: Gateway Distance Last Update 192.168.10.33 120 00:00:01 Distance: (default is 120) PA#show ip interface brief Interface IP-Address OK? Method Status Protocol BRI0 unassigned YES unset administratively down down BRI0:1 unassigned YES unset administratively down down BRI0:2 unassigned YES unset administratively down down Ethernet0 192.168.10.97 YES manual up up Serial0 192.168.10.62 YES manual up up Serial1 unassigned YES unset administratively down down Serial2 unassigned YES unset administratively down down Serial3 unassigned YES unset administratively down down PA#show version Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-IS-L), Version 11.2(11.1), MAINTENANCE INTERIM SOFTWARE Copyright (c) 1986-1998 by cisco Systems, Inc. Compiled Tue 13-Jan-98 21:09 by tlane Image text-base: 0x0302F1F4, data-base: 0x00001000 ROM: System Bootstrap, Version 11.0(10c), SOFTWARE BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTWARE (fc1) PA uptime is 22 minutes System restarted by reload System image file is "flash:/c2500-is-l_112-111.bin", booted via flash cisco 2520 (68030) processor (revision N) with 6144K/2048K bytes of memory. Processor board ID 17602547, with hardware revision 00000003 Bridging software. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. Basic Rate ISDN software, Version 1.0. 1 Ethernet/IEEE 802.3 interface(s) 2 Serial network interface(s) 2 Low-speed serial(sync/async) network interface(s) 1 ISDN Basic Rate interface(s) 32K bytes of non-volatile configuration memory. 16384K bytes of processor board System flash (Read ONLY) Configuration register is 0x2102 PA#show hosts Default domain is not set Name/address lookup uses domain service Name servers are 255.255.255.255 Host Flags Age Type Address(es) CT (perm, OK) 0 IP 192.168.10.33 192.168.10.65 192.168.10.1 PA (perm, OK) 0 IP 192.168.10.62 192.168.10.97 ME (perm, OK) 0 IP 192.168.10.129 192.168.10.94 server1 (perm, OK) 0 IP 192.168.10.2 workstation3 (perm, OK) 0 IP 192.168.10.98 workstation4 (perm, OK) 0 IP 192.168.10.99 PA#show ip interface BRI0 is administratively down, line protocol is down Internet protocol processing disabled BRI0:1 is administratively down, line protocol is down Internet protocol processing disabled BRI0:2 is administratively down, line protocol is down Internet protocol processing disabled Ethernet0 is up, line protocol is up Internet address is 192.168.10.97/27 Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is enabled Multicast reserved groups joined: 224.0.0.9 Outgoing access list is not set Inbound access list is 100 Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is disabled IP multicast fast switching is enabled Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled Probe proxy name replies are disabled Gateway Discovery is disabled Policy routing is disabled Network address translation is disabled Serial0 is up, line protocol is up Internet address is 192.168.10.62/27 Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is enabled Multicast reserved groups joined: 224.0.0.9 Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is enabled IP multicast fast switching is enabled Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled Probe proxy name replies are disabled Gateway Discovery is disabled Policy routing is disabled Network address translation is disabled Serial1 is administratively down, line protocol is down Internet protocol processing disabled Serial2 is administratively down, line protocol is down Internet protocol processing disabled Serial3 is administratively down, line protocol is down Internet protocol processing disabled PA#show ip access-lists Extended IP access list 100 permit ip 192.168.10.96 0.0.0.3 host 192.168.10.2 (6 matches) permit icmp 192.168.10.96 0.0.0.3 any echo-reply

CT:

CT#show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port ID ME Ser 1 153 R 1720 Ser 0 PA Ser 0 140 R 2520 Ser 0 CT#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default Gateway of last resort is not set 192.168.10.0 255.255.255.224 is subnetted, 5 subnets R 192.168.10.96 [120/1] via 192.168.10.62, 00:00:11, Serial0 C 192.168.10.64 is directly connected, Serial1 C 192.168.10.32 is directly connected, Serial0 C 192.168.10.0 is directly connected, Ethernet0 R 192.168.10.128 [120/1] via 192.168.10.94, 00:00:21, Serial1 CT#show ip protocol Routing Protocol is "rip" Sending updates every 30 seconds, next due in 2 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Redistributing: rip Routing for Networks: 192.168.10.0 Routing Information Sources: Gateway Distance Last Update 192.168.10.94 120 0:00:03 192.168.10.62 120 0:00:20 Distance: (default is 120) CT#show ip interface brief Interface IP-Address OK? Method Status Protocol BRI0 unassigned YES not set administratively down down Ethernet0 192.168.10.1 YES NVRAM up up Serial0 192.168.10.33 YES NVRAM up up Serial1 192.168.10.65 YES NVRAM up up Serial2 unassigned YES not set administratively down down Serial3 unassigned YES not set administratively down down CT#show version Cisco Internetwork Operating System Software IOS (tm) 3000 Software (IGS-IR-L), Version 11.0(13), RELEASE SOFTWARE (fc1) Copyright (c) 1986-1996 by cisco Systems, Inc. Compiled Mon 09-Dec-96 20:21 by athavale Image text-base: 0x03026008, data-base: 0x00001000 ROM: System Bootstrap, Version 5.2(8a), RELEASE SOFTWARE ROM: 3000 Bootstrap Software (IGS-RXBOOT), Version 10.2(8a), RELEASE SOFTWARE (fc1) CT uptime is 1 hour, 4 minutes System restarted by power-on System image file is "flash:igs-ir-l.110-13", booted via flash cisco 2520 (68030) processor (revision E) with 2048K/2048K bytes of memory. Processor board ID 04919552, with hardware revision 00000002 Bridging software. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. Basic Rate ISDN software, Version 1.0. 1 Ethernet/IEEE 802.3 interface. 2 Serial network interfaces. 2 Low-speed serial(sync/async) network interfaces. 1 ISDN Basic Rate interface. 32K bytes of non-volatile configuration memory. 8192K bytes of processor board System flash (Read ONLY) Configuration register is 0x2102 CT#show hosts Default domain is not set Name/address lookup uses domain service Name servers are 255.255.255.255 Host Flags Age Type Address(es) CT (perm, OK) 1 IP 192.168.10.33 192.168.10.65 192.168.10.1 PA (perm, OK) 1 IP 192.168.10.62 192.168.10.97 ME (perm, OK) 1 IP 192.168.10.129 192.168.10.94 server1 (perm, OK) 0 IP 192.168.10.2 workstation2 (perm, OK) 0 IP 192.168.10.3 CT#show ip interface BRI0 is administratively down, line protocol is down Internet protocol processing disabled Ethernet0 is up, line protocol is up Internet address is 192.168.10.1 255.255.255.224 Broadcast address is 255.255.255.255 Address determined by non-volatile memory MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is enabled Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is disabled IP multicast fast switching is enabled Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled Probe proxy name replies are disabled Gateway Discovery is disabled Policy routing is disabled Serial0 is up, line protocol is up Internet address is 192.168.10.33 255.255.255.224 Broadcast address is 255.255.255.255 Address determined by non-volatile memory MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is enabled Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is enabled IP multicast fast switching is enabled Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled Probe proxy name replies are disabled Gateway Discovery is disabled Policy routing is disabled Serial1 is up, line protocol is up Internet address is 192.168.10.65 255.255.255.224 Broadcast address is 255.255.255.255 Address determined by non-volatile memory MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is enabled Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is enabled IP multicast fast switching is enabled Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled Probe proxy name replies are disabled Gateway Discovery is disabled Policy routing is disabled Serial2 is administratively down, line protocol is down Internet protocol processing disabled Serial3 is administratively down, line protocol is down Internet protocol processing disabled

ME:

ME#show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port ID CT Ser 0 174 R 2520 Ser 1 ME#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set 192.168.10.0/27 is subnetted, 5 subnets R 192.168.10.96 [120/2] via 192.168.10.65, 00:00:24, Serial0 C 192.168.10.64 is directly connected, Serial0 R 192.168.10.32 [120/1] via 192.168.10.65, 00:00:24, Serial0 R 192.168.10.0 [120/1] via 192.168.10.65, 00:00:24, Serial0 C 192.168.10.128 is directly connected, FastEthernet0 ME#show ip protocol Routing Protocol is "rip" Sending updates every 30 seconds, next due in 22 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Redistributing: rip Default version control: send version 1, receive any version Interface Send Recv Triggered RIP Key-chain FastEthernet0 1 1 2 Serial0 1 1 2 Automatic network summarization is in effect Maximum path: 4 Routing for Networks: 192.168.10.0 Routing Information Sources: Gateway Distance Last Update 192.168.10.65 120 00:00:04 Distance: (default is 120) ME#show ip interface brief Interface IP-Address OK? Method Status Protocol FastEthernet0 192.168.10.129 YES NVRAM up up Serial0 192.168.10.94 YES NVRAM up up ME#show version Cisco Internetwork Operating System Software IOS (tm) C1700 Software (C1700-Y7-M), Version 12.2(4)T3, RELEASE SOFTWARE (fc3) TAC Support: http://www.cisco.com/tac Copyright (c) 1986-2002 by cisco Systems, Inc. Compiled Sun 10-Feb-02 02:57 by ccai Image text-base: 0x800080E0, data-base: 0x808258A4 ROM: System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1) ME uptime is 11 minutes System returned to ROM by reload System image file is "flash:c1700-y7-mz.122-4.T3.bin" cisco 1720 (MPC860) processor (revision 0x601) with 24576K/8192K bytes of memory. Processor board ID VMS062403PY (3200675184), with hardware revision 0000 M860 processor: part number 0, mask 32 Bridging software. X.25 software, Version 3.0.0. 1 FastEthernet/IEEE 802.3 interface(s) 1 Serial(sync/async) network interface(s) 32K bytes of non-volatile configuration memory. 8192K bytes of processor board System flash (Read/Write) Configuration register is 0x2102 ME#show ip hosts Default domain is not set Name/address lookup uses domain service Name servers are 255.255.255.255 Codes: u - unknown, e - expired, * - OK, ? - revalidate t - temporary, p - permanent Host Age Type Address(es) *p workstation6 0 IP 192.168.10.131 *p workstation5 0 IP 192.168.10.130 *p CT 0 IP 192.168.10.33 192.168.10.65 192.168.10.1 *p PA 0 IP 192.168.10.62 192.168.10.97 *p ME 0 IP 192.168.10.129 192.168.10.94 *p nfs 0 IP 192.168.10.2 ME#show ip interface FastEthernet0 is up, line protocol is up Internet address is 192.168.10.129/27 Broadcast address is 255.255.255.255 Address determined by non-volatile memory MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Multicast reserved groups joined: 224.0.0.9 Outgoing access list is not set Inbound access list is 101 Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is disabled IP Feature Fast switching turbo vector IP multicast fast switching is disabled IP multicast distributed fast switching is disabled IP route-cache flags are Fast Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled RTP/IP header compression is disabled Probe proxy name replies are disabled Policy routing is disabled Network address translation is disabled WCCP Redirect outbound is disabled WCCP Redirect inbound is disabled WCCP Redirect exclude is disabled BGP Policy Mapping is disabled Serial0 is up, line protocol is up Internet address is 192.168.10.94/27 Broadcast address is 255.255.255.255 Address determined by non-volatile memory MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Multicast reserved groups joined: 224.0.0.9 Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is enabled IP Fast switching turbo vector IP multicast fast switching is disabled IP multicast distributed fast switching is disabled IP route-cache flags are Fast Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled RTP/IP header compression is disabled Probe proxy name replies are disabled Policy routing is disabled Network address translation is disabled WCCP Redirect outbound is disabled WCCP Redirect inbound is disabled WCCP Redirect exclude is disabled BGP Policy Mapping is disabled ME#show ip access-lists Extended IP access list 101 permit ip 192.168.10.128 0.0.0.3 host 192.168.10.2 permit icmp 192.168.10.128 0.0.0.3 any echo-reply