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Next: Miscellaneous Up: Inline Mode Previous: Using the Honeynet Snort   Contents

Troubleshooting Snort Inline

If you run Snort Inline and see something like this: 

Initializing Output Plugins!
Reading from iptables
Log directory = /var/log/snort
Initializing Inline mode
InlineInit: : Failed to send netlink message: Connection refused
More than likely, the ip_queue module is not loaded or ip_queue support is not compiled into your kernel. Either recompile your kernel to support ip_queue, or load the module.

The ip_queue module is loaded by executing: 

insmod ip_queue
Also, if you want to ensure Snort Inline is getting packets, you can start it in the following manner: 
snort_inline -Qvc <configuration file>
This will display the header of every packet that Snort Inline sees.


Steven Sturges 2008-09-17
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