NAT64 return traffic vanishes after successful de-alias

Andrey V. Elsukov bu7cher at
Sun Dec 15 17:57:15 UTC 2019

On 15.12.2019 19:15, John W. O'Brien wrote:
> Yes, this is exactly the problem. Thank you very much!
> The reason it was working in the EC2 case is because the FreeBSD AMIs
> set ipv6_activate_all_interfaces="YES".
> It helps me quite a lot to learn the concept of "reschedules a packet
> again on the same interface". That fills in a gap that I am sure will
> come in handy when trying to reason about behavior in the future.
> Incidentally, where are those drops counted? I did start looking at
> "netstat -i" and "netstat -s" for clues, and even now that I know what
> to look for, I'm not sure I know what I'm seeing. Is it "ip6: output
> packets discarded due to no route"?

I think you can see such drops in the `netstat -isp ip6` output for each
specific interface in the `input datagram discarded` row.

WBR, Andrey V. Elsukov

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