First, a real quick point to the original poster of this 
question.  The subject line question did not match the question 
contained in your post at all.  To answer the question in your 
subject line, here are some possible good answers to the 
question of what is the quickest way to reload a router:

1.  Press the 1 O switch to the O position and quickly back to 
the 1 position.

2.  Yank the 3 pronged power cord and plug it back in rapidly.

3.  If you are a fast typist and assuming your system 
configuration had been saved since the last boot, type the 
following three letters, "rel" and press enter twice.

Of course, none of thse answers solves the real question you 
posed.  I assume that the real question you wanted answered 
was "what is the quickest method to restore a Cisco router to 
an ROTB".  For the uninitiated, that would be a "Router outta 
the box", as in, how it arrives directly from Cisco.

To restore a router to ROTB state, you need only type 
either "wr er", which is short for "write erase", or "er 
start", which is short for "erase startup-config".  This will 
ensure that when the router reboots, it will have a default 
empty configuration.  What I assume you really want is to make 
that running configuration you have, look like an ROTB config.  
You have a couple of choices.  

First, you can "no out" every single line you entered in your 
configuration to make it look the way that it presently does. 
This means that if you typed "user bob pass cisco" at global 
configuration mode, you would need to type, "no user bob pass 
cisco" to remove that line from your running config. If you are 
a fast typist, this may not take long.  If you are not a fast 
typist, or you have a very long config, let me recommend one of 
the three listed methods above.

There is no way that you can take "copy start run" and have the 
startup config replace the running config.  The reason for this 
is that nobody probably ever told you that the running config 
really does not exist - not in the strictest sense.  It is not 
a file that you can manipulate, such as the startup config.  It 
is actually only pointers in memory (RAM).  When you want to 
see all those memory pointers, you just type the command, "show 
run" and it tells you something.  Didn't you ever notice the 
message?  it says, "building config". How does it build it?  It 
goes to all the memory locations where the interface 
configurations are stored, the router statements, access list 
statements, etc.  Once it gathers all of these memory lines up, 
it displays it to you at the console.  That is why any time you 
modify the running configuration, you merge it.  Merge means 
that if there is a parameter stored (no shut for example), and 
you modify it (shut), the paramters will be changed.  If you do 
not modify the parameter, it will remain the same.

So, what's the real answer to your question?  My money goes 
with "wr er" and power cycle the router.

HTH,

Paul Werner


> Subject: RE: What is the quickest way to reload a router? 
[7:15247]
> 
> I don't have anything to try on right now, but it occurs to 
me that this
> might work:
> 
> erase start
> copy start run
> 
> in theory, at least.

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