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1. Add an easy summary route for area 1, 2, and 51. Verify impact on the routing table of other routers

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#Note, you only summarize networks on ABRs or ASBRs

Belt:

router ospf 1
 area 1 range 10.1.0.0 255.255.0.0 !------- unlike eigrp (config summarization on interfaces), ospf summarizes network on router level


Tie:

router ospf 1
 area 2 range 10.2.0.0 255.255.0.0


Sock:

router ospf 1
 area 51 range 10.51.0.0 255.255.0.0