First things first is getting DMVPN rocking on this Topology, and from in depth reading into different deployments of DMVPN, it seems the preferred method is to actually have two different DMVPNs running on BR1 and BR2, then configure spokes to be able to reach both (and each other). Its been a lot of head … Continue reading Huge DMVPN / PfR / FVRF Lab – Trying to get things working smoothly but failing, will be going back to basics for now!
The above Topology has already been configured with its respective IP Addressing / Routing Protocols, all Adjacencies are Up/Up, and we are ready to jump straight into NHRP (Next Hop Resolution Protocol) configuration on the Hub / NHS (Next Hop Server) which will be PHX1 Router in this Topology and then onto the DMVPN Spokes! … Continue reading DMVPN – Huge DMVPN Lab, multi-branch deployment considerations, Phase 1 to Phase 2 DMVPN clearly demonstrated, lots of configuration and verification!
This will be so basic that I am not sure exactly why I am posting, except for the sake of a refresher to this material, as the name implies instead of doing a "GRE to GRE" tunnel, we are creating Multi-GRE Tunnels with the help of NHRP (Name Hop Resolution Protocol), to allow spoke sites … Continue reading DMVPN – mGRE review of NHRP Servers and Client configurations (nothing labbed), and a glimpse out IPSec configuration at the very end!
Since we are now efficient at all things GRE and IPSec VPN at this point, that makes for a smooth transition into DMVPN , though I want to be crystal clear that the ROUTE Blueprint mentions only "Describe DMVPN (Single Hub)" so I will not be configuring it all over again, I do have a … Continue reading VPN: DMVPN, NHRP, and mGRE – Brief initial configuration review, verification review, and a link to all the gritty details!
This was a misleading Topology in the way that, this describes a Phase 1 DMVPN. There are 3 phases of DMVPN, which are like different series, which has progressively gotten better over time and included more features. This is a list of the 3, and what features they included / lacked: Phase 1 - Hub … Continue reading More Intro to DMVPN! Phases descriptions, what NHRP is, a Phase 2 configuration and troubleshooting
So I have not been posting over the weekend, however I haven't been slacking either. What I am going to post today is going to be a mixture of information from Chris Bryant's 8 minute DMVPN video, and the few parts I watched from the 8 hours of INE CCNP DMVPN training. INE really goes … Continue reading DMVPN – Theory, explanations, and illustrations! (Lab coming up next post)