IP SLA 877

[jack samuel]

Hello folks,

track 123 ip sla 1 reacheability

ip sla 1

  icmp-echo 10.10.10.10 source-interface Vlan1

timeout 1000

threshold 2

frequency 3

ip sla schedule 1 life forever start-time now

ip route 0.0.0.0 0.0.0.0 20.20.20.20 track 123.

ip route 0.0.0.0 0.0.0.0 30.30.30.30 100

sh ip route track-table always shows me down. why ????/ Is there i m missing in the above configuration.i m doing with IOS 12.4 on router 877

[cadet alain]

Hi,

Can you provide a topology diagram and put the output of:

-sh ip route 10.10.10.10

- sh ip cef exact-route "vlan1 IP"   10.10.10.10

-sh track 123

- sh ip sla statistics 1

Regards.

Alain

Don't forget to rate helpful posts.

[jack samuel]

Hi,

I am trying to track a default route pointing to ISP on my easy vpn client router, the router doen"t have a static route to 10.10.10.10 and there are no ip cef route to the specific destination.

The below status is when the track command is included in the static route.whenever i include a track command in the default route  my vpn connection disconnects and when i remove the track command the vpn connection comes up.

ip route 0.0.0.0 0.0.0.0 dialer0 track 123

TEST#sh track

Track 123

  IP SLA 1 reachability

  Reachability is Down

    6 changes, last change 00:00:24

  Latest operation return code: Timeout

  Tracked by:

    STATIC-IP-ROUTING 0

TEST#sh ip sla statistics

IPSLAs Latest Operation Statistics

IPSLA operation id: 1

Type of operation: icmp-echo

        Latest RTT: NoConnection/Busy/Timeout

Latest operation start time: *09:12:47.851 UTC Mon May 7 2012

Latest operation return code: Timeout

Number of successes: 210

Number of failures: 154

Operation time to live: Forever

[smehrnia]

hi,

Can you manualy ping 10.10.10.10 sourced from vlan 1?

try

timeoute 2000

threshold 1000

plz Rate if it helped.

Soroush

[jack samuel]

Hi,

when i put ip route 0.0.0.0 0.0.0.0 dialer0 everything works fine. but when i put ip route 0.0.0.0 0.0.0.0 dialer0 track 123 everythng goes down.

I tried still the ip SLA commands which you sggested but still the situation is same.

IOS :

flash:c870-advipservicesk9-mz.124-24.T1.bin"

Thanks

[rizwanr74]

"10.10.10.10 source-interface Vlan1"

Is the network segment on vlan1 is being natted or no-natted if it goes via for VPN connection correctedly?

It seems to be that what it is failing.

thanks

[smehrnia]

Could you manually ping ur destination, sourced from VLAN 1?

because here i dont see any problems with ur SLA, track n rtr are just doing the same thing in different versions.

most probabely the problem is with reachability itself, try to remove or change the source-interface extension

plz Rate if it helped,

Soroush.

[rizwanr74]

Hi Jack,

Please change highlighted value below.

track 123 ip sla 1 reacheability

change to.

track 123 rtr sla 1 reacheability

let me know, if this helps.

thanks

Rizwan Rafeek

[jack samuel]

Rizwan,

there is no option of rtr, i have always configured by rtr and it works fine,

TEST(config)#track 123 ?

  interface    Select an interface to track

  ip           IP protocol

  list         Group objects in a list

  stub-object  Stub tracking object

Thanks

[jack samuel]

Dear Soroush

Could you manually ping ur destination, sourced from VLAN 1?

because here i dont see any problems with ur SLA, track n rtr are just doing the same thing in different versions.

most probabely the problem is with reachability itself, try to remove or change the source-interface extension

Yes i can ping the tracking IP when it is configured in the router as ip route 0.0.0.0 0.0.0.0 dialer0 and there is a default route in the table

BUT when i add a track keyword with a default route   ip route 0.0.0.0 0.0.0.0 dialer0 track 123 the default route from the routing table is been removed immediately and this is the reason i m losing the connectivity.

Dear Rizwan,

Yes it is an Easy vpn client connection and it is network extension mode , the local internal IP reaches the server it is not Natted.

[rizwanr74]

Hi Jack,

I believe, it is the ip (10.10.10.10) you are expecting a echo-reply from, must be disabled for ping reply.

Try, a different, interface ip at HO router's IP instead, a pingable IP.

thanks

Rizwan Rafeek.

[jack samuel]

Rizwan,

"No" this IP is pingable with a source address of interface vlan 1 when i configure a default route such as

ip route 0.0.0.0.0 0.0.0.0 dialer0

BUT

It it not pingable when a default route is configured such as ip route 0.0.0.0 0.0.0.0 dialer 0 track 123 becz what actual it is happening is that after applying the track command in the ip route when i do sh ip route there is no default route in the routing table.

Is it i have to upgrade the IOS for the router,it is strange becz after entering the track 123 command in ip route the default route disappears from the routing table.

Thanks

[cadet alain]

Hi,

can you post sanitized config and output of debug track and debug ip icmp.

Regards.

Alain

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[jack samuel]

Here are the attahced.