packet-generator new {						\
  name x							\
  limit 1							\
  node ip6-input						\
  size 64-64							\
  data {							\
    ICMP6: ::1 -> ::2						\
    ICMP echo_request						\
    incrementing 100						\
  }								\
}

tr add pg-input 100
ip route ::1/128 via local
ip route ::2/128 via local