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Blue Coat Packet Capture

The Blue Coat Proxy / Filter device transfers packets like any other network device. A simple troubleshooting technique is to see if the packets are flowing through the device as expected. Here are the commands to do a Blue Coat Packet Capture:

Blue Coat Packet Capture

pcap filter expr “host 10.1.1.2”
setup a filter to capture packets on 10.1.1.2
pcap start|stop
start or stop the packet capture
pcap info
show statistics and info about the packets captured to make sure you got what you were looking for
pcap transfer ftp://ftp.example.com username password
send the files via ftp to a remote host so you can open in wireshark and analyze

Blue Coat Packet CaptureThis does a full packet capture, and the only real danger is possibly capturing too much in your network packet capture. There are options for packet size limited during capture, but I havent’ had to use them on Blue Coat yet!

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