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New Member

IP SLA 877

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

13 REPLIES
Purple

IP SLA 877

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

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Don't forget to rate helpful posts.
New Member

Re: IP SLA 877

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

Gold

IP SLA 877

hi,

Can you manualy ping 10.10.10.10 sourced from vlan 1?

try

timeoute 2000

threshold 1000

plz Rate if it helped.

Soroush

Hope it Helps, Soroush.
New Member

Re: IP SLA 877

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

IP SLA 877

"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

Gold

IP SLA 877

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.

Hope it Helps, Soroush.

IP SLA 877

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

New Member

Re: IP SLA 877

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

New Member

Re: IP SLA 877

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.

Re: IP SLA 877

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.

New Member

Re: IP SLA 877

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

Purple

IP SLA 877

Hi,

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

Regards.

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
New Member

Re: IP SLA 877

Here are the attahced.

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