Working through INE labs DMVPN phases – as a reminder:
DMVPN w/ OSPF –
Phase 1 – On Hub change Tunnel Interface network type to point-to-multipoint and either Hub or Spoke OSPF hello timers to match.
Phase 2 – On Hub & Spokes – change network type to broadcast or non-broadcast and change priorities so Hub is always DR and Spokes are never DR in order to not allow changes to next-hop value. If non-broadcast, on Hub set ospf neighbors manually.
DMVPN w/ EIGRP –
Phase 1 – disable split horizon under either tunnel interface or af-interface tunnel.
Phase 2 – issue no ip next-hop-self eigrp under tunnel or no next-hop-self under af-interface tunnel.
Phase 3 – ip nhrp redirect on Hub and ip nhrp shortcut on Spokes.
padawanccie 