08-01-2010 08:02 PM - edited 02-21-2020 04:46 PM
Hi,
I'm going to design a DMVPN full-mesh network same as following topology.
If hub-router which has static public IP address shut down, would another three routers be able to keep their tunnels?
Regards,
Tomoyuki
Solved! Go to Solution.
08-01-2010 09:49 PM
depends on whic hphase of dmvpn u r running
what code r u running on your routers
08-01-2010 09:55 PM
assuming you have a pretty decent code
i do not think anything would happen, the tunnel will continue to be up
but just make sure that the duration of downtime is less than the time remaining for the tunnel to reestablish
08-02-2010 01:55 AM
The answer is no, as the nhrp mappings will change and there will have to be a change in the hub. You could configure a dual hub scenario where if one goes down the other can take over.
08-01-2010 09:49 PM
depends on whic hphase of dmvpn u r running
what code r u running on your routers
08-01-2010 09:55 PM
assuming you have a pretty decent code
i do not think anything would happen, the tunnel will continue to be up
but just make sure that the duration of downtime is less than the time remaining for the tunnel to reestablish
08-01-2010 11:30 PM
Hi jathaval,
Thank you for your good help.
I got it,
Next question.
After the hub-router has downed, the mesh tunnel will be composed of three spoke-routers which have public dynamic IP address.
Once one of the three routers has reloaded and the IP address has changed, can they keep their mesh tunnel without hub-router whitch has public static IP address?
If the answer is NO, can I prepare anything for this?
For example, replace one of the public dynamic IP by static one in order to put second static-IP-router in the DMVPN topology.
Regards,
Tomoyuki
08-02-2010 01:55 AM
The answer is no, as the nhrp mappings will change and there will have to be a change in the hub. You could configure a dual hub scenario where if one goes down the other can take over.
08-02-2010 02:35 AM
Super!!
Thank you for your great help!
I'll try this scenario.
Regards,
Tomoyuki
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