Hello, chat, I am currently having issues with DMVPN flapping over my DMVPN WAN infrastructure. I have been looking at my configurations for some time now and have not been able to identify any configurations errors that could be causing this issue. I wanted to upload to chat to see if anyone would help me figure out what is possible inconsistent or wrong in my configuration. Thanks!
Spoke Log Error: *Jul 23 18:16:11.972: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 172.27.250.2 (Tunnel500) is down: retry limit exceeded
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*Jul 23 18:16:16.313: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 172.27.250.2 (Tunnel500) is up: new adjacency
SPOKE CONFIGURATION:
interface Tunnel500
description DMVPN
bandwidth 10000000
ip address 172.27.250.6 255.255.255.240
no ip redirects
ip mtu 1400
ip nhrp authentication DMVPN123
ip nhrp map 172.27.250.1 65.57.79.218
ip nhrp map multicast 65.57.79.218
ip nhrp map 172.27.250.2 4.17.253.242
ip nhrp network-id 10
ip nhrp nhs 172.27.250.1
ip nhrp nhs 172.27.250.2
ip tcp adjust-mss 1360
delay 1000
tunnel source GigabitEthernet0/0
tunnel mode gre multipoint
tunnel key 1
router eigrp DMVPN
!
address-family ipv4 unicast autonomous-system 100
!
topology base
exit-af-topology
network 172.27.250.0 0.0.0.15
exit-address-family
HUB CONFIGURATION:
interface Tunnel500
description DMVPN
bandwidth 1000000
ip address 172.27.250.1 255.255.255.240
no ip redirects
ip mtu 1400
ip nhrp authentication DMVPN123
ip nhrp network-id 10
no ip split-horizon
ip tcp adjust-mss 1360
delay 1000
tunnel source GigabitEthernet0/1
tunnel mode gre multipoint
tunnel key 1
router eigrp DMVPN
!
address-family ipv4 unicast autonomous-system 100
!
topology base
exit-af-topology
network 172.27.250.0 0.0.0.15
exit-address-family
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