Certainly you can do that without any issue. In a hutshell, if u are
running OSPF, make sure you assign:
a) bandwidth N and ospf priority 1 on Hub1. + key phase2 key abc123 and
0.0.0.0 (wildcard)
b) bandwidth (N-1) and ospf priority 10 (lower than Hub1) on hub2. +
isakmp key abc123 and 0.0.0.0
c) Gre multippoint on hub1 and hub2
d) each remote site - one unnel interface, pointing to both hubs.
On Sun, Oct 30, 2011 at 7:13 AM, Paul Tim <paultim68_at_gmail.com> wrote:
> Hello Experts
> I got One Hub and 30 Spokes as VPN Server and Client. VPN Server is running
> on 3800 series box with Public Static IP and clients are mixed i.e 1800
> series / ASA / 877 / 2800. Some Clients are with Public Static Ip and some
> are Dynamic IP. When its Router-to-Router VPN then we configure IPSEC over
> GRE to avoid creating ACL to allow or deny access.
> OSPF is the Routing protocol for all sites.
>
> I am planning to move to DMVPN with Dual Hub for load sharing and
> redundancy. Second Hub Server will come at a later stage.
>
> My question is can I run DMVPN on my existing Hub Router with existing
> configuration of site to site VPN. Appreciate input on migration plan in
> similar scenario.
>
> cheers
> Paul
>
>
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Received on Sun Oct 30 2011 - 10:15:42 ART
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