11-09-2018 10:27 AM
I am having trouble setting up DMVPN in a virtual network in GNS3 for a proof of concept before putting in on a live network. I can get the static tunnels from the spokes to the hubs to come up but I cannot get traffic to pass though the tunnels. I can get dynamic tunnels between the spokes to form only if I ping the spoke tunnel IP directly. The routers in question are using BGP over a MLPS for routing but do not have any VRF’s configured. I was unable to find any info about using BGP without VRF’s. Is it possible or will I need to use VRF’s or a different routing protocol like OSPF or EIGRP to make the traffic use the DMVPN tunnels? Any help you can give will be greatly appreciated.
11-09-2018 11:40 AM
What are you trying to do?
11-09-2018 11:51 AM
Trying to get all traffic coming from inside the network to the other other spokes to pass through the DMVPN tunnel. If I ping one of the other spokes tunnel IP a dynamic tunnel gets setup but if I just send data to a spoke network it goes through outside the tunnel.
11-09-2018 11:43 AM
11-09-2018 11:52 AM
11-09-2018 12:01 PM
11-09-2018 12:57 PM
I can only put in bits and pieces. I am mimicking a live config and have to cut out a lot. There are several spokes connected through a MPLS.
Tunnel Configs
Hub Config
interface Tunnel1
description mGRE - DMVPN Tunnel
bandwidth 1000
ip address 172.31.255.1 255.255.255.0
no ip redirects
ip mtu 1400
ip nhrp authentication *******
ip nhrp map multicast dynamic
ip nhrp network-id 17231255
ip nhrp holdtime 450
ip tcp adjust-mss 1360
delay 1000
mpls ip
tunnel source ********
tunnel mode gre multipoint
tunnel key 100000
tunnel protection ipsec profile DMVPN-VPN
Spoke 3
interface Tunnel1
description mGRE - DMVPN Tunnel
ip address 172.31.255.3 255.255.255.0
no ip redirects
ip mtu 1400
ip nhrp authentication *******
ip nhrp map multicast **********
ip nhrp map 172.31.255.1 **********
ip nhrp network-id 17231255
ip nhrp holdtime 450
ip nhrp nhs 172.31.255.1
ip tcp adjust-mss 1360
delay 1000
mpls ip
tunnel source GigabitEthernet0/1
tunnel mode gre multipoint
tunnel key 100000
tunnel protection ipsec profile DMVPN-VPN
Spoke 4
interface Tunnel1
description mGRE - DMVPN Tunnel
ip address 172.31.255.4 255.255.255.0
no ip redirects
ip mtu 1400
ip nhrp authentication *******
ip nhrp map multicast **********
ip nhrp map 172.31.255.1 **********
ip nhrp network-id 17231255
ip nhrp holdtime 450
ip nhrp nhs 172.31.255.1
ip tcp adjust-mss 1360
delay 1000
tunnel source GigabitEthernet0/1
tunnel mode gre multipoint
tunnel key 100000
tunnel protection ipsec profile DMVPN-VPN
11-09-2018 01:29 PM
11-09-2018 01:42 PM
11-09-2018 02:15 PM
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