EIGRP with VLANs

This how to is a continuation of the how to found here.  The Packet Tracer of this how to can be found here.

In this how to, the the EIGRP routing protocol is being deployed. In addition the VLANs will be able to communicate with two new networks introduced, 10.0.0.0/8 and 192.168.5.192/27. Overall most of the the networks used in these examples are not efficiently broken down with VSLM. The focus for now is to understand and learn routing and routing protocols.

In this example we will use EIGRP with the VLANs we already created which will be able to communicate with the two new networks as mentioned above.

EIGRP

 

Make sure Router 0 can handle the traffic from the VLANs. We managed to do that by running the following commands in the previous how to. You can verify the router is aware of the VLANs by pinging the VLAN router interfaces 192.168.50.100 and so forth. Below are the commands that we used to make Router 0 aware of the VLANS.

On Router 0 run the following only if you cannot ping from one of the workstations the network address for each VLAN:

For VLAN 50

 
interface fastEthernet 0/0.50
encapsulation dot1Q 50
ip address 192.168.50.100 255.255.255.0

For VLAN 60

 
interface fastEthernet 0/0.60
encapsulation dot1Q 60
ip address 192.168.60.100 255.255.255.0

For VLAN 99

 
interface fastEthernet 0/0.99
encapsulation dot1Q 99
ip address 192.168.99.100 255.255.255.0

For VLAN 150

 
interface fastEthernet 0/0.150
encapsulation dot1Q 150
ip address 192.168.150.100 255.255.255.0

 

Configure the FastEthernet and Serial connections of Router 0

The FastEthernet 0/0 is not assigned an IP address simply because it handles traffic from all VLANs.

For Interface FastEthernet 0/1 execute

interface FastEthernet 0/1
ip address 10.0.0.1 255.0.0.0
no shutdown

For Interface Serial 0/2/0 execute

interface Serial 0/2/0
ip address 192.168.5.225 255.255.255.252
no shutdown

For Interface Serial 0/2/1 execute

interface Serial 0/2/1
clock rate 64000
ip address 192.168.5.234 255.255.255.252
no shutdown

Setup EIGRP on Router 0

router eigrp 1
network 10.0.0.0  0.255.255.255
network 192.168.5.224  0.0.0.3
network 192.168.5.232  0.0.0.3

 

Configure the FastEthernet and Serial connections of Router 1

For Interface FastEthernet 0/0 execute

interface FastEthernet 0/0
ip address 192.168.5.1 255.255.255.128
no shutdown

For Interface Serial 0/2/0 execute

interface Serial 0/2/0
ip address 192.168.5.229 255.255.255.252
no shutdown

For Interface Serial 0/2/1 execute

ip address 192.168.5.226 255.255.255.252
clock rate 64000
no shutdown

Setup EIGRP on Router 1

router eigrp 1
network 192.168.5.0   0.0.0.127 
network 192.168.5.228 0.0.0.3   
network 192.168.5.224 0.0.0.3

 

Configure the FastEthernet and Serial connections of Router 2

For Interface FastEthernet 0/0 execute

interface FastEthernet 0/0
ip address 192.168.5.193 255.255.255.224
no shutdown

For Interface Serial 0/2/0 execute

interface Serial 0/2/0
ip address 192.168.5.233 255.255.255.252
no shutdown

For Interface Serial 0/2/1 execute

interface Serial 0/2/1
clock rate 64000
ip address 192.168.5.230 255.255.255.252
no shutdown

Setup EIGRP on Router 1

router eigrp 1
network 192.168.5.192  0.0.0.31 
network 192.168.5.232  0.0.0.3  
network 192.168.5.228  0.0.0.3 
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Static Routing

This is a continuation of the previous how to located here.  You can download this Packet Tracer file from here.

In this how to, we have configured router 0 to allow communication between networks 10.0.0.0 and 192.168.50.100

You do this by running the following command on Router 0

ip route 10.0.0.0 255.0.0.0  10.0.0.0

 

Static_routing

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PVST – Per VLAN Spanning Tree Protocol

This how to shows how to setup PVST (Per VLAN Spanning Tree Protocol) for the VLANs created. Keep in mind the model I created here is not robust enough to support full redundancy for all VLANs but it will do just fine to show how PVSTs can be setup. This particular Packet Tracer file can be downloaded from here

In few words, assuming we have VLANs 50,60,99 and 150, PVST determines which switch will be the Root Primary Switch for VLAN50 and which Switch will be the Root Secondary for VLAN50. The same goes for the rest of the VLANs.

We are using the setup from the previous posts.
VLAN-SWITCH-REDUNANCY

On Switch 3 run the following commands.

spanning-tree mode  pvst 
spanning-tree vlan 50 priority 0
spanning-tree vlan 60 priority 0
spanning-tree vlan 80 priority 0
spanning-tree vlan 99 priority 0
spanning-tree vlan 150 priority 0

On Switch 4 run the following commands.

spanning-tree mode  pvst 
spanning-tree vlan 50 root secondary
spanning-tree vlan 60 root secondary
spanning-tree vlan 80 root secondary
spanning-tree vlan 99 root secondary
spanning-tree vlan 150 root secondary

On Switch 2 we can run few commands to increase performance by enabling instant forwarding and by also enabling bpdu-guard. These commands should be run only on switches that hosts are connected.

#On the switch that the hosts are connected. It will enable fast forwarding.
spanning-tree portfast
#On the switch that the hosts are connected. It will enable bpguard
spanning-tree BPDUguard
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