[c-nsp] Router rebooting due to software crash.

[Justin M. Streiner]

On Mon, 5 Aug 2013, Joseph Mays wrote:

> We have a cisco 3600 that has rebooted twice in the last two hours, 
> both times due to a software crash that shows the same memory address. I 
> checked "show mem" and nothing is listed as operating that address, at 
> least not right now. This router has been in operation a long time and 
> has not had these problems previously. Nothing has changed in the config 
> on the router in the last several months, at least.

Another possibility is that the version of code you're running is 
vulnerable to one (or more) of the many bugs that can cause a Cisco router 
to reload, leak memory, etc.  12.3(6) is pretty ancient code, and the 
3640 has been end-of-life since 2007, and no new code has been released 
for it since probably late 2005.

I don't know what function this router serves in your network, but replacing it 
with something newer that can run newer code is worth considering, 
epecially if it's something that can be reached from untrusted networks.

jms