IpConfig/CaptureBuffer Registry Key
The JNIOR by default allocates 512KB of memory for network capture. If
network traffic needs to be analyzed, the NETSTAT FC command is used to
generate a PCAPNG capture file which can be downloaded and opened with the
Wireshark network protocol analyzer https://www.wireshark.org
. This means
that there is always recent network history available for capture. The
default 512KB can represent minutes or even hours of network operation
depending on the amount of network use. Only packets involving the JNIOR
are captured. This packet buffer can be increased using this Registry key
and can be set for any number KB between 512 and 8192 (8MB Maximum).
This Registry key setting takes effect only on reboot.
the capture buffer is volatile and records network activity while the unit
remains powered. The content survives a reboot but is reset when power is
removed. The NETSTAT -R command will also reset the capture buffer.
If the network capture is not covering a long enough period of time, we
recommend first using a capture filter to limit the content to pertinent
activity before increasing the buffer. An extremely large PCAPNG file can
be difficult to upload and process. Similarly the NETSTAT -C command
can include a capture filter moving only those packets of interest to the
HELP Topics: FILTERING