# arp
---
protocol: &arp
  name: arp
  longname: Address Resolution Protocol
  osilayer: 2
  fields:
    - field: htype
      desc: Hardware type
      length: 2
    - field: ptype
      desc: Protocol type
      length: 2
    - field: hlen
      desc: Hardware address length
      length: 1
    - field: plen
      desc: Protocol address length
      length: 1
    - field: oper
      desc: Operation
      length: 2
    - field: sha
      desc: sender hardware address
      reflength: hlen
    - field: spa
      desc: sender protocol address
      reflength: plen
    - field: tha
      desc: target hardware address
      reflength: hlen
    - field: tpa
      desc: target protocol address
      reflength: plen