Thanks guys. The spoke with weird counters is running "Cisco IOS Software, C890 Software (C890-UNIVERSALK9-M), Version 15.2(4)M2, RELEASE SOFTWARE (fc2)" 

Sure enough; CISCO-IPSEC-FLOW-MONITOR-MIB::cipSecGlobalActiveTunnels.0 = Gauge32: 67

The hub is running 15.0(1)M4

I'll go bug Cisco.

Thanks again!


On Thu, Dec 20, 2012 at 11:09 AM, Nikolay Shopik <shopik@inblock.ru> wrote:
State your IOS release, because there is one which does increment them
all time until you reboot router ;)

On 20.12.2012 22:01, Alex Pressé wrote:
> I've built a DMVPN test network with one hub and one spoke and upon
> monitoring them, I notice the graph for IPSEC Active Tunnels
> (/graphs/type=device_cipsec_flow_tunnels) increments by one every hour -
> only on the spoke router, not on the hub.
>
> So I'm wondering where Observium is grabbing that piece of data from? Which
> SNMP OID?
>
> If I do a "show crypto eli" on the spoke, I have 2 active sessions
> (Observium now reports 66), and 12 on the hub (Observium reports 5).
>
> Any ideas?
>
> Thanks!
>
>
>
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--
Alex Presse
"How much net work could a network work if a network could net work?"