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OSPF OVER FRAME-RELAY: BROADCAST
WRITTEN BY RENE MOLENAAR ON�24 JULY 2010. POSTED IN�OSPF
SCENARIO:
As the senior network engineer for a Dutch fishing company you are responsible for connecting all the different branch offices to the main network. The WAN technology you are using is�Frame Relay, and you need to run�OSPF�over this WAN connection. You are able to broadcast on this Frame Relay link.
GOAL:
* The�frame-relay�switch has been preconfigured for you, as you can see in the topology picture the following PVC's has been configured:
Router Barracuda to Salmon:
Barracuda: DLCI 102
Salmon: DLCI 201
Router Barracuda to Herring:
Barracuda: DLCI 103
Salmon: DLCI 301
�
* Router Barracuda is the "Hub" router and the other 2 routers are the "Spoke" routers.
* Do not change any configuration on the�Frame-Relay�switch.
* Configure the following IP addresses:
Router Barracuda:
S0/0: 192.168.123.1 /24
L0: 1.1.1.1 /24
Router Salmon:
S0/0: 192.168.123.2 /24
L0: 2.2.2.2 /24
Router Herring:
S0/0: 192.168.123.3 /24
L0: 3.3.3.3 /24
* Configure all serial interfaces for encapsulation Frame-Relay.
* Disable�Frame-relay�inverse arp�on all serial interfaces.
* Configure the correct frame-relay map statements on all routers and make sure you can ping every IP address.
* Configure the�OSPF network type�to "broadcast" on all serial interfaces.
* Configure OSPF on all 3 routers, make sure you have full connectivity. All IP addresses including the loopbacks should be reachable.
* You are not allowed to use the "neighbor" command in the OSPF configuration.
* Make sure router Salmon and Herring can never be the Designated or Backup designated router.
IOS:
c3640-jk9s-mz.124-16.bin
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