Re: Proactive monitoring of IP SLA with SNMP

Hi Edouard ,

Since the dialer interface is you primary interface you will be
interested in its line protocol status .

rather than worrying about a tracking mib you can enable link status
traps on the dialer interface using the command below:
int dialer 1
snmp trap link-status

and configure other snmp related commands(snmp-server community ,
snmp-server host etc)

HTH

On 5/12/10, Edouard Zorrilla <ezorrilla_at_tsf.com.pe> wrote:
> Hello Guys,
>
> I hope you can help me with this. Here we have routers with two internet
> access (DMVPN Network), one is the principal and the other one is the back
> up.
>
> We have set up the router in this way :
>
> track 1 interface Dialer1 ip routing
> ip route 0.0.0.0 0.0.0.0 Dialer1 track 1
> ip route 0.0.0.0 0.0.0.0 Vlan2 dhcp 100
>
> PE0001#CA0269#sh ip int brief | ex down
> Interface IP-Address OK? Method Status
> Protocol
> Dialer1 <Public IP1> YES IPCP up
> up
> FastEthernet0 unassigned YES unset up
> up
> FastEthernet1 unassigned YES unset up
> up
> FastEthernet2 unassigned YES unset up
> up
> FastEthernet3 unassigned YES unset up
> up
> FastEthernet4 unassigned YES NVRAM up
> up
> Tunnel10 172.xx.117.69 YES NVRAM up
> up
> Tunnel20 172.yy.117.69 YES NVRAM up
> up
> Virtual-Access1 unassigned YES unset up
> up
> Vlan1 10.1xy.69.1 YES NVRAM up
> up
> Vlan2 <Public IP2> YES DHCP up
> up
> PE0001#
>
> PE0001#sh inventory
> NAME: "881", DESCR: "881 chassis.
>
>
> So, if dialer 1 get into a issue, default gateway move to be the secondary
> line. As soon as "track 1" senses that dialer is in a issue, it will show us
> a
> message :
>
> %TRACKING-5-STATE: 1 interface Di1 ip routing Up->Down
>
> My question is, how can I make that snmp take care of this message ? I want
> to
> respond to issues at the first sign of a problem, I mean when primary
> internet
> line is down. It would be very good that a Open Source solution (CACTI or
> Nagios ) could send me one email and show one alarm in monitor tab.
>
> But I do not know yet, how can I get the MIB for "track" feature on Cisco
> IOS.
> If I guess that If I am able to get the MIB for track command I would be
> able
> to monitor my cisco router when the primary line is down.
>
> Thanks a lot for your time,
>
> Regards
>
>
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-- 
Warm Regards,
Eseosa
CCIE #23782
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