PCAP Recording Management and VLAN Mirroring [Документация VAS Experts]
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    en:dpi:dpi_options:opt_li:li_ctrl:start [2024/08/01 07:14] – elena.krasnobryzhen:dpi:dpi_options:opt_li:li_ctrl:start [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
    Line 1: Line 1:
    -====== PCAP Recording Management and VLAN Mirroring ====== 
    -{{indexmenu_n>4}} 
    -===== PCAP Recording Management ===== 
    -Service 12 includes PCAP recording for all subscriber traffic. The PCAP file is placed in the path specified in the basic configuration in ''fastdpi.conf'': 
    -<code bash>ajb_udpi_path</code> 
      
    -<note important>In Service 12, PCAP is recorded at the subscriber level, after the processing, policing, and services have been applied to the subscriber.</note> 
    - 
    -When the parameter ''ajb_reserved=1'' is active, you can control the start and stop of the recording on the platform using the SM utility ''fdpi_ctrl'': 
    -<code bash> 
    -fdpi_ctrl setenv --ajb_save_url  1 
    -fdpi_ctrl setenv --ajb_save_udpi 1 
    -</code> 
    - 
    -Enabling PCAP recording: 
    -<code bash> 
    -fdpi_ctrl load --service 12 --ip 192.168.1.1 
    -fdpi_ctrl load --service 12 --login USER101 </code> 
    - 
    -Disabling: 
    -<code bash> 
    -fdpi_ctrl del --service 12 --ip 192.168.1.1 
    -fdpi_ctrl del --service 12 --login USER101 
    -</code> 
    - 
    -To quickly search for data in the PCAP file, you can create a file with indexable data by enabling the setting in ''/etc/dpi/fastdpi.conf'': 
    -<code bash> 
    -ajb_pcap_ind_mask=1 
    -</code> 
    -Where: 
    -  * 0 - index is not created (default) 
    -  * 1 - by IPv4 
    -  * 2 - by IPv6 
    -  * 3 - by IPv4 and IPv6 
    - 
    -<note important>If other recording methods for the same subscriber, ''ajb_save_udpi'' or ''ajb_save_ip'', are enabled, the resulting index will not write ''SESSION_ID''</note> 
    -<note>The minimum PCAP file size is 100 MB</note> 
    - 
    -===== VLAN Mirroring ===== 
    -Service 17 includes mirroring subscriber traffic to a specific VLAN, which is added to the data ports of SSG. The traffic direction is preserved. 
    - 
    -Configuration in ''fastdpi.conf'': 
    -<code bash> 
    -span_vlan=123 
    -span_trace=1 
    -</code> 
    - 
    -For diagnostics, you can use one of the parameters in ''fastdpi.conf'': 
    -<code bash> 
    -trace_ip 
    -span_trace 
    -ajb_save_emit 
    -</code> 
    - 
    -Enabling VLAN mirroring: 
    -<code bash> 
    -fdpi_ctrl load --service 17 --ip 192.168.1.1 
    -fdpi_ctrl load --service 17 --login USER101 </code> 
    - 
    -Disabling VLAN mirroring: 
    -<code bash> 
    -fdpi_ctrl del --service 17 --ip 192.168.1.1 
    -fdpi_ctrl del --service 17 --login USER101 
    -</code> 
    - 
    -<note important>If both services 12 and 17 are enabled, the PCAP will show both the original and mirrored recordings.</note>