Re: kern/52554: IPv6 connections not routing to default gateway

[Ryota Ozaki <ozaki-r%netbsd.org@localhost>]

On Thu, Sep 28, 2017 at 10:30 PM, Roy Bixler <rcbixler%nyx.net@localhost> wrote:
> On Thu, Sep 28, 2017 at 03:55:01AM +0000, Ryota Ozaki wrote:
>>  Could you please send outputs of the following commands?
>>
>>  route -n get -inet6 2001:470:a085:999::80
>
> $ route -n get -inet6 2001:470:a085:999::80
>    route to: 2001:470:a085:999::80
> destination: ::
>        mask: default
>     gateway: fe80::ec4:7aff:feda:2d5b%wm0
>  local addr: fe80::5054:ff:fe12:3457%wm0
>   interface: wm0
>       flags: <UP,GATEWAY,DONE,STATIC>
>  recvpipe  sendpipe  ssthresh  rtt,msec    rttvar  hopcount      mtu     expire
>        0         0         0         0         0         0         0         0

Looks correct.

>
>
>>  netstat -s >/tmp/bef; ping6 -n -c 1 -X 1 2001:470:a085:999::80;
>
> Yes, oddly enough, ping6 works:
>
> $ netstat -s >/tmp/bef; ping6 -n -c 1 -X 1 2001:470:a085:999::80;
> PING6(56=40+8+8 bytes) 2620:105:c000:3:58a4:a8c:71ce:44f9 --> 2001:470:a085:999::80
> 16 bytes from 2001:470:a085:999::80, icmp_seq=0 hlim=48 time=53.904 ms
>
> --- 2001:470:a085:999::80 ping6 statistics ---
> 1 packets transmitted, 1 packets received, 0.0% packet loss
> round-trip min/avg/max/std-dev = 53.904/53.904/53.904/0.000 ms

Heh. Well so this is not a problem of routing. Just to be sure
please show me outputs of "tcpdump -e" of both ping6 and telnet?

And can you check where a SYN packet of telnet reaches? Does the packet
go out the Linux host?

Thanks,
  ozaki-r