Identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers, specifically ensuring connectivity for the ENG router to the ISP router. Access to the r

Question

Explanation

Initial Network Description: CCNA.com has a small network that is using EIGRP as its IGP. All routers should be running an EIGRP AS number of 12. Router MGT is also running static routing to the ISP. CCNA.com has recently adding the ENG router. Currently, the ENG router does not have connectivity to the ISP router. All other interconnectivity and Internet access for the existing locations of the company are working properly.

Access details: Access to the router CLI can be gained by clicking on the appropriate host. Passwords on all routers are 'cisco'.

IP Address Chart (relevant to problem): MGT: Fa0/0 - 192.168.77.33 Fa1/0 - 192.168.18.6 S0/0 - 192.168.12.9 S0/1 - 192.168.50.21

ENG: Fa0/0 - 192.168.77.34 Fa1/0 - 192.168.12.17 S0/0 - 192.168.12.1

Parts1: Fa0/0 - 192.168.12.33 S0/0 - 192.168.12.49 S0/1 - 192.168.27.10

Parts2: Fa0/0 - 192.168.12.65 S0/0 - 192.168.12.91 S0/1 - 192.168.50.22

Topology Diagram (conceptual): [ISP]---S0/0---[MGT]---S0/1---[Parts2] | Fa0/0 | [ENG]---Fa1/0---[Parts1]

User interaction instruction: First we should check the configuration of the ENG Router. Click the console PC "F" and enter the following commands. ENG> enable Password: cisco ENG# show running-config

Current Configuration (from Page 5): Building configuration... Current configuration : 770 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password encryption ! hostname ENG ! enable secret 5 $1$mERr$hx5rVI7rPNoS4wqbXKX7m0 ! interface FastEthernet0/0 ip address 192.168.77.34 255.255.255.252 duplex auto speed auto ! interface FastEthernet0/1 ip address 192.168.60.65 255.255.255.240 duplex auto speed auto ! interface FastEthernet1/0 ip address 192.168.60.81 255.255.255.240 duplex auto speed auto ! router eigrp 22 network 192.168.77.0 network 192.168.60.0 no auto-summary ! ip classless ! line con 0 line vty 0 4 login ! end ENG#

Problem Analysis: From the output above, we know that this router was wrongly configured with an autonomous number (AS) of 22. When the AS numbers among routers are mismatched, no adjacency is formed. (You should check the AS numbers on other routers for sure)

Solution Commands: To solve this problem, we simply re-configure router ENG router with the following commands: ENG# conf t ENG(config)# no router eigrp 22 ENG(config)# router eigrp 12 ENG(config-router)# network 192.168.60.0 ENG(config-router)# network 192.168.77.0 ENG(config-router)# no auto-summary ENG(config-router)# end ENG# copy running-config startup-config

No community discussion yet for this question.