MLS and EIGRP Sim

MLS and EIGRP

 

This is a popular lab on the web, but everywhere I go, I saw it incomplete, so I tried to finish properly..So Please, follow the complete lab..

You need to configure multilayer Switch according to topology diagram and such that both hosts i.e. Host-A and Host-B are able to successfully ping the Internet server “Server_S1”.

You are not allowed to add/delete VLANs, changes VLAN port assignments or create trunk links. Also you can’t use a static or default routing. All routes must be learned via EIGRP 650 routing protocol. RouterC is correctly configured and no trunking has been configured on RouterC.
Routed interfaces should use the lowest host on a subnet when possible. The following subnets are available to implement this solution:
– 10.10.10.0/24
– 190.200.250.32/27
– 190.200.250.64/27

 Hosts H1 and H2 are configured with the correct IP address and default gateway. The enable password for Multi-Switch is Cisco. Routing must only be enabled for the specific subnets shown in the diagram.

 

A.--Download from he internet the initial configuration of this lab in any simulator. 
In that way you don't need to configure anything, just start working right away on the pre-configured lab.

 B.-Check the graphic for subnetting,  so when you do the mask of 27 ...you will see the proper wild mask of 224

 

C.-Find gateways of PCs with “ipconfig” command in Exam simulator.

These gateways are use to configured as the virtual interface on multilayer switch for given VLANs and in our case we have the following:

Host1:
IP Address: 192.200.250.34

Default gateway: 192.200.250.33

Host2:
IP Address: 192.200.250.66

Default gateway: 192.200.250.65

D.-Note down the EIGRP AS number and VLANs information

You can find it from topology diagram and it is EIGRP 650.

VLAN 22 and 33 are created on multilayer switch and interfaces (connected to hosts) were configured as access ports so we don’t need to configure them in this sim, you also use the “show vlan” command for checking VLANs .

E.-Configure the Virtual interfaces on switch

According to SIM requirement we are not allow to use trunking therefore we will configure the Multi-Switch as a Layer 3 switch with SVIs for interVLAN routing and will configure these VLAN interfaces with gateways of PCs for respective VLANs.

Multi-Switch# configure terminal
Multi-Switch(config)# int f0/3
Multi-Switch(config-if)#no switchport (without using this command, the simulator does not let you assign IP address on f0/0 interface.)
Multi-Switch(config-if)# ip address 10.10.10.2 255.255.255.0 (Router has IP address of 10.10.10.1 therefore we have to assign this interface with same IP-Range) 

Multi-Switch(config-if)# no shutdown
Multi-Switch(config-if)# exit
Multi-Switch(config)# int vlan 22
Multi-Switch(config-if)# ip address 190.200.250.33 255.255.255.224 (check the subnet table, where 224 is coming from)
Multi-Switch(config-if)# no shutdown
Multi-Switch(config-if)# int vlan 33
Multi-Switch(config-if)# ip address 190.200.250.65 255.255.255.224
Multi-Switch(config-if)# no shutdown
Multi-Switch(config-if)#exit

  

F.--Run the routing protocol on Multi layered switch

Multi-Switch(config)# ip routing (Notice: MLS will not work without this command)
Multi-Switch(config)# router eigrp 650
Multi-Switch(config-router)# network 10.10.10.0 0.0.0.255
Multi-Switch(config-router)# network 190.200.250.32 0.0.0.31 ( 31, the wild mask ,comes from 255-224)
Multi-Switch(config-router)# network 190.200.250.64 0.0.0.31

G.-Note: 

Please make sure you use the correct EIGRP AS number (in the configuration above it is 650 but it will change when you take the exam) but we are not allowed to access RouterC so the only way to find out the EIGRP AS is to look at the exhibit above. If you use wrong AS number, no neighbor relationship is formed between RouterC and SwitchC.The same happens with the interface and vlan numbers.

Now look what happens when we run the command "show ip int brief "

So you will need some extra configuration..Otherwise this lab  won't work

Now let's double check it , now that we have it properly configure..Use the command "show ip int brief"

 Now we will do another final confirmation

We could see all the working routes as well.Everything worked fine.

Now this was a good working lab, remember that the numbers will change in the exam and you need to understand the concepts first.

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