M6 and IP-passthrough with routable static IP

Because for some mysterious reason, .txt attachments aren't allowed:

root@OpenWrt2:~# iperf3 -c 84.17.41.11 -p 5201 -t 60 -Z Connecting to host 84.17.41.11, port 5201 [ 5] local 162.191.234.12 port 40326 connected to 84.17.41.11 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 2.12 MBytes 17.8 Mbits/sec 0 729 KBytes [ 5] 1.00-2.00 sec 7.38 MBytes 61.8 Mbits/sec 0 1.17 MBytes [ 5] 2.00-3.00 sec 8.12 MBytes 68.2 Mbits/sec 0 1.54 MBytes [ 5] 3.00-4.00 sec 6.88 MBytes 57.7 Mbits/sec 0 1.91 MBytes [ 5] 4.00-5.00 sec 3.12 MBytes 26.2 Mbits/sec 390 592 KBytes [ 5] 5.00-6.00 sec 1.25 MBytes 10.5 Mbits/sec 671 2.71 KBytes [ 5] 6.00-7.00 sec 1.75 MBytes 14.7 Mbits/sec 92 1.08 MBytes [ 5] 7.00-8.00 sec 8.12 MBytes 68.1 Mbits/sec 0 1.45 MBytes [ 5] 8.00-9.00 sec 6.88 MBytes 57.7 Mbits/sec 0 1.82 MBytes [ 5] 9.00-10.00 sec 2.62 MBytes 22.0 Mbits/sec 1 1.36 KBytes [ 5] 10.00-11.00 sec 0.00 Bytes 0.00 bits/sec 32 24.4 KBytes [ 5] 11.00-12.00 sec 2.75 MBytes 23.1 Mbits/sec 1453 1.39 MBytes [ 5] 12.00-13.00 sec 6.75 MBytes 56.6 Mbits/sec 0 1.76 MBytes [ 5] 13.00-14.00 sec 4.00 MBytes 33.5 Mbits/sec 3 1.75 MBytes [ 5] 14.00-15.00 sec 0.00 Bytes 0.00 bits/sec 6 1.70 MBytes [ 5] 15.00-16.00 sec 0.00 Bytes 0.00 bits/sec 6 1.69 MBytes [ 5] 16.00-17.00 sec 0.00 Bytes 0.00 bits/sec 6 1.69 MBytes [ 5] 17.00-18.00 sec 0.00 Bytes 0.00 bits/sec 7 1.67 MBytes [ 5] 18.00-19.00 sec 0.00 Bytes 0.00 bits/sec 7 1.66 MBytes [ 5] 19.00-20.00 sec 0.00 Bytes 0.00 bits/sec 6 1.65 MBytes [ 5] 20.00-21.00 sec 0.00 Bytes 0.00 bits/sec 6 1.64 MBytes [ 5] 21.00-22.00 sec 2.12 MBytes 17.8 Mbits/sec 7 1.56 MBytes [ 5] 22.00-23.00 sec 2.12 MBytes 17.8 Mbits/sec 7 1.40 MBytes [ 5] 23.00-24.00 sec 0.00 Bytes 0.00 bits/sec 5 1.22 MBytes [ 5] 24.00-25.00 sec 0.00 Bytes 0.00 bits/sec 6 1.18 MBytes [ 5] 25.00-26.00 sec 0.00 Bytes 0.00 bits/sec 4 1.17 MBytes [ 5] 26.00-27.00 sec 0.00 Bytes 0.00 bits/sec 127 86.8 KBytes [ 5] 27.00-28.00 sec 6.12 MBytes 51.4 Mbits/sec 356 1.26 MBytes [ 5] 28.00-29.00 sec 8.38 MBytes 70.3 Mbits/sec 0 1.64 MBytes [ 5] 29.00-30.00 sec 5.62 MBytes 47.2 Mbits/sec 1 1.88 MBytes [ 5] 30.00-31.00 sec 0.00 Bytes 0.00 bits/sec 6 1.60 MBytes [ 5] 31.00-32.00 sec 1.62 MBytes 13.6 Mbits/sec 6 1.58 MBytes [ 5] 32.00-33.00 sec 0.00 Bytes 0.00 bits/sec 7 1.53 MBytes [ 5] 33.00-34.00 sec 0.00 Bytes 0.00 bits/sec 4 1.36 KBytes [ 5] 34.00-35.00 sec 2.50 MBytes 21.0 Mbits/sec 325 1.42 MBytes [ 5] 35.00-36.00 sec 0.00 Bytes 0.00 bits/sec 7 1.19 MBytes [ 5] 36.00-37.00 sec 0.00 Bytes 0.00 bits/sec 6 1.16 MBytes [ 5] 37.00-38.00 sec 0.00 Bytes 0.00 bits/sec 5 2.71 KBytes [ 5] 38.00-39.00 sec 0.00 Bytes 0.00 bits/sec 252 174 KBytes [ 5] 39.00-40.00 sec 3.50 MBytes 29.4 Mbits/sec 199 950 KBytes [ 5] 40.00-41.00 sec 0.00 Bytes 0.00 bits/sec 7 893 KBytes [ 5] 41.00-42.00 sec 0.00 Bytes 0.00 bits/sec 3 884 KBytes [ 5] 42.00-43.00 sec 3.12 MBytes 26.2 Mbits/sec 23 907 KBytes [ 5] 43.00-44.00 sec 7.00 MBytes 58.7 Mbits/sec 0 1.22 MBytes [ 5] 44.00-45.00 sec 7.12 MBytes 59.8 Mbits/sec 0 1.58 MBytes [ 5] 45.00-46.00 sec 6.75 MBytes 56.6 Mbits/sec 0 1.95 MBytes [ 5] 46.00-47.00 sec 0.00 Bytes 0.00 bits/sec 6 1.68 MBytes [ 5] 47.00-48.00 sec 0.00 Bytes 0.00 bits/sec 6 1.67 MBytes [ 5] 48.00-49.00 sec 0.00 Bytes 0.00 bits/sec 6 1.66 MBytes [ 5] 49.00-50.00 sec 0.00 Bytes 0.00 bits/sec 6 1.65 MBytes [ 5] 50.00-51.00 sec 0.00 Bytes 0.00 bits/sec 7 1.64 MBytes [ 5] 51.00-52.00 sec 0.00 Bytes 0.00 bits/sec 6 1.63 MBytes [ 5] 52.00-53.00 sec 0.00 Bytes 0.00 bits/sec 6 1.62 MBytes [ 5] 53.00-54.00 sec 1.62 MBytes 13.6 Mbits/sec 8 1.46 MBytes [ 5] 54.00-55.00 sec 0.00 Bytes 0.00 bits/sec 6 1.43 MBytes [ 5] 55.00-56.00 sec 0.00 Bytes 0.00 bits/sec 16 17.6 KBytes [ 5] 56.00-57.00 sec 2.88 MBytes 24.1 Mbits/sec 10 1.30 MBytes [ 5] 57.00-58.00 sec 0.00 Bytes 0.00 bits/sec 7 1.16 MBytes [ 5] 58.00-59.00 sec 0.00 Bytes 0.00 bits/sec 17 10.8 KBytes [ 5] 59.00-60.00 sec 3.50 MBytes 29.3 Mbits/sec 468 1.09 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.00 sec 126 MBytes 17.6 Mbits/sec 4624 sender [ 5] 0.00-60.14 sec 123 MBytes 17.1 Mbits/sec receiver iperf Done. root@OpenWrt2:~#

Note the intervals were zero packets got through:  15, 19-25, 28-31, ...

I've even been told by tech support that my SLA didn't have enough bandwidth and that's why a one packet-per-second test was failing (the ping below).

# ping -c 100 24.116.100.90 PING 24.116.100.90 (24.116.100.90): 56 data bytes 64 bytes from 24.116.100.90: seq=0 ttl=54 time=90.591 ms 64 bytes from 24.116.100.90: seq=1 ttl=54 time=52.553 ms 64 bytes from 24.116.100.90: seq=2 ttl=54 time=164.566 ms 64 bytes from 24.116.100.90: seq=3 ttl=54 time=124.372 ms 64 bytes from 24.116.100.90: seq=4 ttl=54 time=60.166 ms 64 bytes from 24.116.100.90: seq=5 ttl=54 time=50.402 ms 64 bytes from 24.116.100.90: seq=6 ttl=54 time=162.617 ms 64 bytes from 24.116.100.90: seq=7 ttl=54 time=57.555 ms 64 bytes from 24.116.100.90: seq=8 ttl=54 time=59.098 ms 64 bytes from 24.116.100.90: seq=25 ttl=54 time=639.718 ms <======= 64 bytes from 24.116.100.90: seq=26 ttl=54 time=60.880 ms 64 bytes from 24.116.100.90: seq=27 ttl=54 time=67.038 ms 64 bytes from 24.116.100.90: seq=28 ttl=54 time=56.424 ms 64 bytes from 24.116.100.90: seq=29 ttl=54 time=63.629 ms 64 bytes from 24.116.100.90: seq=30 ttl=54 time=58.553 ms 64 bytes from 24.116.100.90: seq=31 ttl=54 time=110.747 ms 64 bytes from 24.116.100.90: seq=32 ttl=54 time=56.388 ms 64 bytes from 24.116.100.90: seq=33 ttl=54 time=70.281 ms 64 bytes from 24.116.100.90: seq=52 ttl=54 time=66.309 ms <======= 64 bytes from 24.116.100.90: seq=53 ttl=54 time=181.092 ms 64 bytes from 24.116.100.90: seq=54 ttl=54 time=55.216 ms 64 bytes from 24.116.100.90: seq=55 ttl=54 time=55.123 ms 64 bytes from 24.116.100.90: seq=56 ttl=54 time=53.488 ms 64 bytes from 24.116.100.90: seq=57 ttl=54 time=71.008 ms 64 bytes from 24.116.100.90: seq=58 ttl=54 time=54.779 ms 64 bytes from 24.116.100.90: seq=59 ttl=54 time=64.302 ms 64 bytes from 24.116.100.90: seq=74 ttl=54 time=2816.721 ms <======= 64 bytes from 24.116.100.90: seq=75 ttl=54 time=1816.697 ms 64 bytes from 24.116.100.90: seq=76 ttl=54 time=816.189 ms 64 bytes from 24.116.100.90: seq=77 ttl=54 time=56.368 ms 64 bytes from 24.116.100.90: seq=78 ttl=54 time=58.980 ms 64 bytes from 24.116.100.90: seq=79 ttl=54 time=56.697 ms 64 bytes from 24.116.100.90: seq=80 ttl=54 time=52.612 ms 64 bytes from 24.116.100.90: seq=81 ttl=54 time=66.038 ms 64 bytes from 24.116.100.90: seq=82 ttl=54 time=76.089 ms 64 bytes from 24.116.100.90: seq=83 ttl=54 time=69.489 ms 64 bytes from 24.116.100.90: seq=84 ttl=54 time=205.059 ms <======= --- 24.116.100.90 ping statistics --- 100 packets transmitted, 37 packets received, 63% packet loss round-trip min/avg/max = 50.402/235.076/2816.721 ms

I've put arrows next to interruptions of packet flows (losses).