Capture & Analyze 10 ICMP packets

icmp_analysis_cap.rb

require 'packetgen'

# capture an array of 10 parsed packets, using a bpf filter
icmps = PacketGen.capture(iface: 'eth0', filter: 'icmp', max: 10)

# analyze each packet's payload
icmps.each do |packet|
  puts packet.body
end

# analyze each packet icmp header type
icmps.each do |packet|
  puts packet.icmp.type
end

# get an array of each packet's icmp checksum
checksums = icmps.map { |packet| packet.icmp.checksum }