{ "pcap": { "interface": "eth1", "_filter": "( arp ) or ( ip and port 67 ) or ( ip6 and port 547 )", "filter": "icmp6 or port 67 or port 68 or port 546 or port 547 or arp", "__filter": "port 546 or port 547", "snaplen": 2000 }, "sleep": 1000000, "maxpkt": 1, "clients": { "count": 10, "baseoui": "5254FF", "_rampup": "number of clients per second to start, CANNOT BE 0 !!!", "rampup": 1, "ipv4": 1, "ipv6": 0, "backoff": [ 2, 5, 10, 20, 20, 20, 20 ] } }