also see other ICMP implementations http://godoc.org/golang.org/x/net/icmp http://godoc.org/golang.org/x/net/ipv4#ICMPType http://godoc.org/golang.org/x/net/ipv6#ICMPType

see libbeat/CONTRIBUTING.md libbeat/common/endpoint.go libbeat/common/tuples.go SUPPORT_PROTOCOL.md docs/new_protocol.asciidoc etc/fields.yml

requirements

• transaction: single message or message pair
• correlation key: ip: src, dst; icmp: id, seq