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PAT Rule Alerting / IOS 12.4(15)T10

Hello Networking Experts,

Cisco 877W-G-A-M-K9 Router
(C870-ADVSECURITYK9-M), Version 12.4(15)T10

Is it possible to be alerted (via email /  written to log buffer) when port address translation targeting a certain internal IP address is performed ?

I have an internal service running on port 8090, available via the config below to the WWW on port 8091.

What I would like to do is setup some form of alerting so I know about when the service is accessed from outside of the local LAN.  i.e. when 'p nat inside source static tcp 8090 interface Dialer0 8081' is triggered, send an alert of some sort.

Is this possible?

Thanks in advance.

ip nat inside source static tcp 8090 interface Dialer0 8081

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Istvan Kalmar
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ikalmar - Thanks for your reply, I think this might be the solution I am looking for.

I dont have a syslog server though, is it possible to log to the internal buffer instead ?

How would I do this ?
yes, it is possible but it is restricted length!

you need to enable internal buffer:
logging buffered deb
logging buffered 8192

you able to view it:

sh logg
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PERFECT solution to my issue.  Thankyou.