How can i configure the DMVPN for FR Hub and Spoke topology?
As i do have multiple point to point sub interfaces on the HUB router, so what will be the tunnel source ip address for HUB router...? as all ip addresses are assigned to the subinterfaces of the hub router and actual physical interface dont have any ip... so when i want to configure the tunnle for DMVPN then what will be the tunnel source in this case...?
Ok, so you want some traffic to be encrypted while other is not.
I would start with the configurations given in the DMVPN paper, particular attention must be given to the NHRP mapping because the tunnel interface at the hub is multipoint and does not know where to send data unless you have the above working.
yes i have defined some of the traffice that should be transfered using the IPSecVPN...
yes, its something like... when spoke has data to send it to the other spoke then NHRP will be the main factor to find out the other spoke ip address with the help of hub...
and because of limitation of IPSecVPN which doesnot support the Muilticast and Broadcast traffic will have to use the GRE and here GRE is multipoint tunneling... so we can have hub and spoke with the IPSec as well i will have support for Multicast and Brodacast traffic also... and most intresting part of this DMVPN is Spoke can have dynamic IP addressing scheam to its interface... so when ever the spoke will up it will get IP address from provider and spoke will register that IP address to the HUB...
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