Traffic-export capturing only inbound traffic

Question

Hi
We have a Cisco 2811 running ITP IOS.  On that router we run the SMPP service.  A client on the network connects to this service, and we need to capture the traffic for debug.
I've tried traffic-export, but I cannot see any outbound traffic.
I'm guessing that this is due to the fact that the outbound SMPP traffic is not transit traffic as it is generated by the router itself.
Is there any way to capture the outbound traffic?
Thanks
Colin

Answer 1

Hi Colin,
Please see below
http://www.cisco.com/en/US/docs/ios-xml/ios/sec_usr_cfg/configuration/12-4/sec-ip-traff-export.html
Step 8
outgoing            {access-list{standard | extended | named} | sample one-in-every packet-number}
Example: Router(config-rite)# outgoing sample one-in-every 50
(Optional) Configures filtering for outgoing export traffic.
Note  
If you issue this command, you must also issue the bidirectional  command, which enables outgoing traffic to be exported. However, only  routed traffic (such as passthrough traffic) is exported; that is,  traffic that originates from the network device is not exported.
An option might be to plug in to a cisco switch and SPAN the port to an interface with a sniffer on it like wireshark?
http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a008015c612.shtml#topic4