I really should be focusing on important things but...

Here's a cool "hidden" command:

Router#test crash
WARNING: Command selections marked with '(crash router)' will crash
          router when issued. However a selection 'C' will need to
          be issued IMMEDIATELY before these selections to enable them.


Type the number for the selected crash:
--------------------------------------
  1  (crash router) Bus Error, due to invalid address access
  2  (crash router) Bus Error, due to parity error in Main memory
  3  (crash router) Bus Error, due to parity error in I/O memory
  4  (crash router) Address Error, due to fetching code from odd address
  5  (crash router) Jump to zero
  6  (crash router) Software forced crash
  7  (crash router) Illegal read of address zero
  8  (crash router) Divide by zero
  9  (crash router) Corrupt memory
  C  Enable crash router selection marked with (crash router)
  R  (crash router) User enter read bus error address
  U  (crash router) User enter write bus error address
  W  (crash router) Software watchdog timeout (*** Watch Dog Timeout  
***)
  w  (crash router) Process watchdog timeout (SYS-2-WATCHDOG)
  d  Disable crashinfo collection
  e  Enable crashinfo collection
  i  Display contents of current crashinfo flash file
  m  Write crashinfo on crashinfo RAM
  n  Change crashinfo flash file name
  q  Exit crash menu
  s  Save crashinfo to current crashinfo flash file
  c  Close current crashinfo flash file
  t  Write crashinfo on console TTY
  x  Exit crash menu
?

On Oct 24, 2009, at 12:52 PM, Christian Medina wrote:

> Adrian,
>
> What Platform are you using and what code are you running?
> I have seen this on the Cisco firewall OS but not the routers/ 
> switches.
>
> Adrian Brayton wrote:
>> There are commands available to you that are hidden and don't show  
>> up when you use the question mark... Crazy I know ;)
>> Example:
>> Router(config-router)#bgp bestpath ?
>>  compare-routerid  Compare router-id for identical EBGP paths
>>  cost-community    cost community
>>  med               MED attribute
>> Router(config-router)#bgp bestpath as-path ignore
>> Router(config-router)#
>> You can see when I hit the question mark "?" the command didnt show  
>> up that I used but its there if you know it exists...
>> Router(config-router)#bgp bestpath as-path ignore
>> Router(config-router)#
>> Thats what I am talking about!!
>> On Oct 24, 2009, at 12:19 PM, nicholas golden wrote:
>>> Eh? Interesting, I don't have anything to add as I really don't  
>>> understand what you are asking :)
>>> What you mean by "appear" exactly?
>>>
>>> :)
>>>
>>> --- On *Sat, 10/24/09, Adrian Brayton /<[email protected] 
>>> <mailto:[email protected] 
>>> >>/* wrote:
>>>
>>>
>>>    From: Adrian Brayton <[email protected] <mailto:[email protected] 
>>> >>
>>>    Subject: [OSL | CCIE_RS] IOS Commands
>>>    To: "OSL CCIE-RS" <[email protected]
>>>    <mailto:[email protected]>>
>>>    Date: Saturday, October 24, 2009, 9:17 AM
>>>
>>>    Is there anyway in the IOS to enable commands to appear with  
>>> the "?"     that are hidden?
>>>
>>>    I couldn't find anything when I googled it...
>>>
>>>    Just curious...
>>>    _______________________________________________
>>>    For more information regarding industry leading CCIE Lab  
>>> training,
>>>    please visit www.ipexpert.com <http://www.ipexpert.com>
>>>
>>>
>> ------------------------------------------------------------------------
>> _______________________________________________
>> For more information regarding industry leading CCIE Lab training,  
>> please visit www.ipexpert.com
>
> -- 
> Christian Medina
> Network Engineer
> Brandeis University
> 781-736-4960
> [email protected]
>

_______________________________________________
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