NAT problem , the CPU becomes FULL

[mendrika13]

Hello,

We have got some problem in our router (a 1841, IOS Version 12.4(15)T12),

I activated the command "debug ip packet" (to observ nat translation) then the cpu became full (100%) and I wasn't able to reach the management IP of it.

After restarting the router, I can reach it BUT the cpu still in very high average 80-100% and we have loss some packets.

What should we do to decrease the CPU utilisation?

How can I be sure that the debug ip packet is off ? (I tried the command "show debugging {condition} {all}" but no result)

Thank you

[Philip D'Ath]

If you rebooted the router then all debugs are cleared.  You can see debugs with:

show debug

If you want to see NAT translations you can:
show ip nat translations

Yes, "debug ip packet" puts the router under considerable load and should not be used except for very lightly loaded routers at non-production times.