| Name | Result (FreeBSD) |
|---|---|
| pmtu-10pkt | Failed |
After writing 10 data segments, the receiver should send an ICMP message saying fragmentation is required.
0.250 < [1:1461(1460)] icmp unreachable frag_needed mtu 1500>
From the MTU specified in the ICMP message, sender should retransmit cwnd packets.
However, everything runs smooth except that receiver never sends an ICMP message.
- FreeBSD TUN device does not support TSO, check this test on separate machines using remote mode in packetdrill.