ERSPAN Type III over GRE without sequence number not decoded correctly

This issue was migrated from bug 16089 in our old bug tracker.

Original bug information:

Reporter: myc…@‍gma…
Status: RESOLVED FIXED
Product: Wireshark
Component: Dissection engine (libwireshark)
OS: All
Platform: All
Version: 3.0.5

Attachments:

erspan_type_III.pcap: ERSPAN type 3 pkt cap
: ERSPAN type 3 pkt working snapshot
: Frame 3 of your capture file with Wireshark 3.0.4
bugzilla_erspan_icmp.pcap: Attached pcap file for ICMP packets encapsulated in erspan type 3
: Screencap of the same pcap file with ICMP packet encapsulated in type-3 decode, version 3.0.5

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