type subheader =
| Id_and_seq of Cstruct.uint16 * Cstruct.uint16
| Next_hop_mtu of Cstruct.uint16
| Pointer of Cstruct.uint8
| Address of Ipaddr.V4.t
| Unused
type t = {
code : Cstruct.uint8;
ty : Icmpv4_wire.ty;
subheader : subheader;
}
val pp : Format.formatter -> t -> unit
val equal : t -> t -> bool
module Unmarshal : sig ... end
module Marshal : sig ... end