ip sla responder issue

[ING_TR]

Hi,

I have cisco1117  router and i want to use ip sla responder for checking services such as dsl and 4g. 

I m using following commands to enable responders but after a few munites router fails to response this ports.

How can i enable responders permenantly?

ip sla responder tcp-connect port 65002
ip sla responder tcp-connect port 65000
ip sla responder tcp-connect port 65001

#show ip sla responder
General IP SLA Responder on Control port 1967
General IP SLA Responder on Control V2 port 1167
General IP SLA Responder is: Disabled

Permanent Port IP SLA Responder
Permanent Port IP SLA Responder is: Enabled

tcpConnect Responder:
IP Address Port
0.0.0.0 65002
::          65002
0.0.0.0 65000
::           65000
0.0.0.0 65001
::           65001

Thanks for help

[Georg Pauwen]

Hello,

you don't have an IP address specified in your statement, is that on purpose ? Usually you would use the syntax:

ip sla responder tcp-connect ipaddress x.x.x.x port 65002

[ING_TR]

hi,
I tried both configuration but it is still going down after ten minutes.I have the same configuration on 887vag routers but i am facing this kind of problem for only isr1k routers.I already checked documentation ,however, i could not find any specification for this problem .

[Georg Pauwen]

Hello,

there are a number of bugs which could apply, which IOS version are you running ?

Try to configure ip sla responder globally without any arguments in addition the specific ports. So it looks like this:

ip sla responder

ip sla responder tcp-connect port 65002
ip sla responder tcp-connect port 65000
ip sla responder tcp-connect port 65001

[ING_TR]

I applied this configuration but nothing changed. I debug errors and traces for ip sla responder ,however, it shows me nothing.
Im using c1100-universalk9_ias.16.09.02.SPA.bin and i could not find info related to bug issue.
Thanks for your help.

[Georg Pauwen]

Hello,

what do you have configured on the source device ? Does it work when you disabe the responder ?

ip sla 1
tcp-connect x.x.x.x 65000 control disable

[ING_TR]

hi ,

after a few researches i found that ip sla responder do not reset session and that's why port 65000 reaches tcp queue limit.

Do you have any idea why isr routers do not reset connection ?