1pass in bpf-v4 { "0x20 0 0 0xc 0x15 0 0x1 0x1010101 0x6 0 0 0x60 0x6 0 0 0" } 2pass out bpf-v4 { "src host 1.1.1.1" } 3pass in bpf-v4 { "0x20 0 0 0x10 0x15 0 0x1 0x1010101 0x6 0 0 0x60 0x6 0 0 0" } 4pass out bpf-v4 { "dst host 1.1.1.1" } 5