#7 Spoke Destination unreachable

[Eran Hadar]

Hi,

We're trying to setup Dynamic multi-point VPN with OpenNHRP powered linux hub. I followed the following blog post:
https://blog.tufarolo.eu/dynamic-multi-point-vpn-with-cisco-nhrp-protocol/

but ended up with the follwong cisco interface config:
interface Tunnel0
ip address 10.254.254.2 255.255.255.0
no ip redirects
ip mtu 1400
ip nhrp network-id 1
ip nhrp nhs 10.254.254.1 nbma hub-ip multicast
ip nhrp shortcut
ip tcp adjust-mss 1360
tunnel source GigabitEthernet2
tunnel mode gre multipoint
tunnel key 1
tunnel protection ipsec profile GRE

Hub is CentOS7 with kernel 3.12 on AWS and the spokse is cisco csr1000 on VM elsewhere.

Our problem is that I can ping the hub using the GRE IP 10.254.254.1 but the hub cannot reply to the ping request and I get destination unreachale.
the hub log also show the inevitable No peer entry for protocol address 10.254.254.2

We're trying to solve an urgent customer issue thus a prompt reponse would be highly appreciated.

Kind Regards,

Eran