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Please help with DMVPN and NHRP network ids

Can somebody please provide some guidance?

We are setting up a dual hub DMVPN. The hubs DMVPNs are connected to a network with two diffrent carriers providing WAN connectivity to the remote spoke location. Each spoke is connected to only one of the two carriers. Each spoke has one tunnel to each of the two hubs.

We currently do not want to enable spoke to spoke VPNs.

My questions are:

How many nhrp network ids should be used?

One per carrier? One per hub? Or just one?

1 REPLY
Silver

Re: Please help with DMVPN and NHRP network ids

ip nhrp network-id 100000

The DMVPN solution uses Multipoint GRE (mGRE) and Next Hop Resolution Protocol (NHRP), with IPsec and some new enhancements, to solve the above problems in a scalable manner

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