One can control start and stop of the recording on the platform by SM fdpi_ctrl utility when the parameter ajb_reserved=1 is set:

fdpi_ctrl setenv --ajb_save_url  1
fdpi_ctrl setenv --ajb_save_udpi 1

Recording subscriber traffic in PCAP¹⁾

To activate:

fdpi_ctrl load --service 12 --ip 192.168.1.1
fdpi_ctrl load --service 12 --login USER101 

To stop:

fdpi_ctrl del --service 12 --ip 192.168.1.1
fdpi_ctrl del --service 12 --login USER101

All subscriber traffic is recorded. The PCAP file is located according to the path specified in the basic ajb_udpi_path setting.

To quickly find data in a PCAP file, you can create a file with indexed data by turning on the settings in /etc/dpi/fastdpi.conf

ajb_pcap_ind_mask=1

Here:

• 0 - index is not created (default value)
• 1 - IPv4
• 2 - IPv6
• 3 - both IPv4 and IPv6.

If other recording methods are enabled for this subscriber (ajb_save_udpi or ajb_save_ip), then SESSION_ID will be not recorded to the resulting index.