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Posts tagged EIGRP
EIGRP Lab #1
May 3rd
This is the first EIGRP post I’ll be doing for CCIE lab preparation.
I’ve tried to include a lot in this one without making it too long. Here’s the topology:
Click here for the initial configs
Here is task one:
1. Advertise all connected loopbacks into EIGRP AS 100. Ensure that only interfaces connected to other routers will form adjacencies. Do not allow EIGRP to summarize automatically.
Simple stuff:
R1(config)#router eigrp 100 R1(config-router)#passive-interface default R1(config-router)#no passive-interface Virtual-Template12 R1(config-router)#no passive-interface Virtual-Template13 R1(config-router)#network 1.0.0.0 R1(config-router)#network 10.0.0.0 R1(config-router)#no auto-summary R1(config)#interface Virtual-Template12 R1(config-if)#ip address 10.1.12.1 255.255.255.0 R1(config-if)# R1(config-if)#interface Virtual-Template13 R1(config-if)#ip address 10.1.13.1 255.255.255.0 R1(config-if)# R1(config-if)#interface Serial0/0.102 point-to-point R1(config-subif)#frame-relay interface-dlci 102 ppp Virtual-Template12 R1(config-subif)# R1(config-fr-dlci)#interface Serial0/0.103 point-to-point R1(config-subif)# frame-relay interface-dlci 103 ppp Virtual-Template13 |
This EIGRP config is basic, we’ve started the EIGRP 100 process, added our passive interface and network statements. We also disable auto-summarization. I’m only showing R1 here as the config is nearly identical across the board. We’ve also configured PPP on the FR links with Virtual Templates, this will be needed later in the config (leak maps).
Troubleshooting Lab #6
Apr 7th
First lab with our new topology. I’m excited! This should be an easy one. When functioning correctly, Customer “a” connects to AS 6500 using MPLS VPNs and running OSPF with the provider between sites. Site 2 (CE2a) has internet access through a physical connection to AS 6500s global RIB, it also has a GRE tunnel to PE1 which connects to the MPLS VPN. Customer “b” has a similar configuration. Customer “b” is using EIGRP. Both customers have a single “internet” circuit which is reachable from only one site, all internet traffic from the other site will go over the WAN first.
The issue today is users in VLAN 40 are having issues accessing the internet (87.3.85.1), determine why.
Troubleshooting Lab #5
Mar 25th
This one might be easy, but I’m having trouble gauging it after last week. Same topology, users are having trouble communicating from one VLAN to the other. Soon I’ll make a new (bigger) topology with more diverse technologies, I haven’t had the time lately.
You can run the .net on your own Dynamips server or you can use mine. Run the topology and login with username “tshoot” and password “tshoot”. This user only has privilege level 1, so show commands will be available, but show run will not be. You can also login with username: “shrun” and password: “shrun”, this will print the running config and boot you out. I would like to grant full privilege 15 access, but I’m worried about people messing with the configs, this is after all a public post. Obviously you could get around this pretty easily, but that would defeat the purpose. 
Troubleshooting Lab #3
Mar 11th
This one is a little different (again). I’ll be posting the .net file with the configs, like last time. I will also have accessibility to the topology through a sandboxed Dynamips VM. This time you will be able to see the running config.
You can run the .net on your own Dynamips server or you can use mine. Run the topology and login with username “tshoot” and password “tshoot”. This user only has privilege level 1, so show commands will be available, but show run will not be. You can also login with username: “shrun” and password: “shrun”, this will print the running config and boot you out. I would like to grant full privilege 15 access, but I’m worried about people messing with the configs, this is after all a public post. Obviously you could get around this pretty easily, but that would defeat the purpose.
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