You will need to use BGP to connect to most MPLS carriers or if you have two Internet providers and want to multi-home.
(Note: private ASN range is 64512 to 65534)
In this example eBGP is configured to the provider (192.168.3.2), eigrp is redistributed into BGP, and iBGP is configured between to 2 customer routers (10.4.32.241 and .242).
router bgp 65511
no synchronization
bgp router-id 10.4.32.241 (loopback0)
bgp log-neighbor-changes
network 0.0.0.0 (propagate default route)
network 192.168.3.0 mask 255.255.255.252 (advertise customer to provider network)
redistribute eigrp 100 (redistribute eigrp into BGP)
neighbor 10.4.32.242 remote-as 65511
neighbor 10.4.32.242 update-source Loopback0
neighbor 10.4.32.242 next-hop-self
neighbor 192.168.3.2 remote-as 65401
no auto-summary
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