(I'm guessing from the "exe" in "Have basically tried every script and exe" that you're running on Windows you will need to run editcap from a console window, and you may have to find out where editcap.exe is and run it with a full path.
If you run editcap -T rawip -F pcap " is the pathname to which you want editcap to write the fixed file, and then read the fixed file, that should work. Firewall with forward proxy and UTM enabled is sending TLS probe with forward proxy IP instead of real server IP.
(If you see 0x45 in a packet hex dump, there's a good chance that it's the first byte of an IPv4 header.)Īnd, for whatever reason, it doesn't have an option to write out the pcap file with a link-layer header type other than Ethernet.įortunately, Wireshark comes with a program that can, among other things, read a capture file and write it out with a different link-layer header type, without changing the packet data, so you can fix an incorrect type that's the editcap program. fgt2eth Script explanationonhowtopacketcaptureforonlycertainTCPflagsv2.txt Packet capture for only certain TCP flags (for use with Fortigate 'sniffer' command): Information extracted from the Man pages of 'tcpdump' command: Updated Jan 2007 for Fortinet KC by Stephen Dennis. For whatever reason, whatever device wrote that file did not write out the Ethernet headers - the hex dumps start with the IP header.
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