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Beginner

Upgrading the hub router in a DMVPN

I have a pair of 3945 routers that are proving to be underpowered for the 100+ remote offices connecting to them. Fortunately I happen to have a couple of 4351 ISRs rated for significantly greater encrypted throughput. Is there any way I could upgrade the primary hub of the DMVPN without doing a new certificate request from each spoke? Any other considerations on upgrading the hub and

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VIP Advisor

Re: Upgrading the hub router in a DMVPN

Hi,

You don't need to replace the spoke certificates, you just need to ensure the Hub has a certificate that is trusted by the spokes. Either generate a CSR and issue a new certificate to the new Hub from the same CA that is currently used or export the existing Hub's certificate and import to the new Hub.

 

HTH