After adding ENG router, no routing updates are being exchanged between MGT and the new location. All other inter connectivity for the existing locations of the company are working properly. But Inter

The problem describes issues with routing updates and internet connectivity after adding the ENG router. The identified faults are: 1. Incorrect Autonomous System Number (ASN) on ENG router. 2. MGT router not advertising the route to the new ENG router. 3. Internet connection not

Implement an EIGRP Based Solution

Question

After adding ENG router, no routing updates are being exchanged between MGT and the new location. All other inter connectivity for the existing locations of the company are working properly. But Internet connection for existing location including Remote1 and Remote2 networks are not working. Faults Identified: 1. Incorrect Autonomous System Number configured in ENG router. 2. MGT router does not advertise route to the new router ENG. 3. Internet Connection is not working all cations. We need to correct the above two configuration mistakes to have full connectivity

Exhibit

Explanation

The problem describes issues with routing updates and internet connectivity after adding the ENG router. The identified faults are:

Incorrect Autonomous System Number (ASN) on ENG router.
MGT router not advertising the route to the new ENG router.
Internet connection not working.

To resolve these issues, perform the following steps:

Correct ENG Router Configuration: The ENG router's EIGRP AS number needs to be changed from 22 to 222. Configure the relevant networks for EIGRP.

ENG>enable
Password: cisco
ENG# conf t
ENG(config)# no router eigrp 22
ENG(config)# router eigrp 222
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

Ensure MGT Router Advertises ENG Network and has Correct ASN: The MGT router also needs to be configured for EIGRP AS 222 and advertise the network connecting to ENG (192.168.77.0). This is crucial for routing updates between MGT and ENG.
```
MGT>enable
Password: cisco
MGT# conf t
MGT(config)# router eigrp 222
MGT(config-router)# network 192.168.77.0
MGT(config-router)# no auto-summary
MGT(config-router)# end
MGT# copy running-config startup-config
```
Configure Default Route and Default-Network on MGT Router: To enable internet connectivity, the MGT router (acting as the perimeter router) needs a default route and a default-network. Assuming 198.0.18.5 is the next hop to the internet and 198.0.18.0 is the network pointing towards the ISP.
```
MGT(config)# ip route 0.0.0.0 0.0.0.0 198.0.18.5
MGT(config)# ip default-network 198.0.18.0
MGT(config)# exit
MGT# copy running-config startup-config
```
After these configurations, routing updates should be exchanged between MGT and ENG, and internet connectivity should be restored through the MGT router.

Topics

#EIGRP#autonomous system number#route advertisement#troubleshooting

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