DMVPN TUNNELS TIME OUT AFTER 2 HOURS, ONLY FIX TO RELOAD HUB.
Posted on 2008-10-25
I have (3) 1800 Series Cisco ISR's. One local connected by DSL, other two units remote running on 1.2m Satellite provided by iDirect.
I have the DMVPN established and it works fine. After two hours (7200 seconds) the hub drops the spokes and the tunnels dissappear. The only remedy I have found is to reload the HUB router, after several minutes the tunnels come up and the system works correctly. I am able to browse the network neighborhood, etc.
Has anyone encountered this problem and what would be the proper fix. I have pasted the tunnel settings below from the HUB.
ip address 192.168.100.1 255.255.255.0
no ip redirects
ip mtu 1300
no ip next-hop-self eigrp 101
ip nhrp authentication AUCDMVPN
ip nhrp map multicast dynamic
ip nhrp network-id 6845126
ip virtual-reassembly max-reassemblies 64
ip tcp adjust-mss 1360
tunnel source FastEthernet0
tunnel mode gre multipoint
tunnel key 85469874
tunnel protection ipsec profile SDM_Profile1
Any help would be much appreciated.