track RTR unrecognized

Answered Question
May 6th, 2008

Hello, I have a cisco 2811 with a IOS Version 12.4(15)T.

I want implement this line in my configuration :

track 1 rtr reachability

But the rtr command is unrecognized. With this link, rtr is recognized... I don't understand.. Have you a solution ?

Correct Answer by Edison Ortiz about 8 years 9 months ago

You need Advanced IP Services for rtr since you only have IP Base.




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Overall Rating: 5 (1 ratings)
Richard Burts Tue, 05/06/2008 - 07:08


I believe that you are missing a parameter in your command. I checked on a router running 12.4(15)T and if I entered:

track 1 rtr 1 reachability

it was accepted just fine. On line help indicates that the parameter that you missed is an entry number.



666Maverick Tue, 05/06/2008 - 08:22

I have tested. It don't recognized rtr.

It don't know what is it.

It have some versions of 12.4(15)T.

I must have a specific parameter for the recognition of this command by the IOS?

I don't understand...

Edison Ortiz Tue, 05/06/2008 - 09:30


Please take us through your online help.

At the router type:

track ?


track 1 ?

and post the output.




Richard Burts Tue, 05/06/2008 - 11:21


I tested on a router running 12.4(15)T as you said. When I entered the command as you posted it I got an error. When I entered the command with the additional parameter that I told you about then the command was accepted.

I believe that the suggestion from Edison is an excellent suggestion. Work your way through the command using on line help and post the results. That will give us a clear view of what is happening.



666Maverick Tue, 05/06/2008 - 12:06


Thanks for your help.

When I type track ?

I have :

"<1-500>" Tracked object

"resolution" Tracking resolution parameters

"timer" Polling interval timers

When I type track 1 ?

I have :

"interface" Select an interface to track

"ip" IP protocol

"list" Group objects in a list

"stub-object" Stub tracking object

Why haven't I rtr ?

Thank you for your help.

Edison Ortiz Tue, 05/06/2008 - 12:47

I wonder what feature set you are running, please post the entire show version output.




666Maverick Tue, 05/06/2008 - 13:31


Here it's the show version :

Router>show version

Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(15)T, RELEASE SOFTWARE (fc3)

Technical Support:

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Mon 25-Jun-07 22:11 by prod_rel_team

ROM: System Bootstrap, Version 12.3(8r)T7, RELEASE SOFTWARE (fc1)

Router uptime is 9 hours, 49 minutes

System returned to ROM by reload at 11:33:53 UTC Tue May 6 2008

System image file is "flash:c2800nm-ipbase-mz.124-15.T.bin"

Cisco 2811 (revision 53.51) with 251904K/10240K bytes of memory.

Processor board ID FHK0923F02C

2 FastEthernet interfaces

2 ATM interfaces

DRAM configuration is 64 bits wide with parity enabled.

239K bytes of non-volatile configuration memory.

62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

Richard Burts Tue, 05/06/2008 - 14:06


Edison's suggestion was very helpful. Your post of the online help going through the track command does show that your version does not support the rtr feature. Yet a router that I tested running 12.4(15)T did support it. The difference appears to be that the router that I was running on had the Advanced Security feature set wehre you have the IP Base feature set. Apparently it is a feature set difference.



Correct Answer
Edison Ortiz Tue, 05/06/2008 - 14:10

You need Advanced IP Services for rtr since you only have IP Base.





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