How to Download Packet Captures as a PCAP File to Use in Wireshark on a Cisco ASA

If you need to download your packet captures on a Cisco ASA/PIX so you can import them into Wireshark it is a very simple process.

I assume the following is true:

1. You have http (ASDM) access to the firewall
2. You already have a capture with captured packets: (See here how to create a capture)

If you want to just see the capture in the browser first to make sure there are packets you can do the following:

Command Format:
https://FW_IP/admin/capture/CAP_NAME

Example: 

https://10.55.55.55/admin/capture/jcap

Once you know you have data in your capture you can download the pcap by doing the following:

Command Format:
https://FW_IP/admin/capture/CAP_NAME/pcap

Example:
https://10.55.55.55/admin/capture/jcap/pcap