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

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

The following reply was made to PR kern/52554; it has been noted by GNATS.

From: Ryota Ozaki <ozaki-r%netbsd.org@localhost>
To: Roy Bixler <rcbixler%nyx.net@localhost>
Cc: "gnats-bugs%NetBSD.org@localhost" <gnats-bugs%netbsd.org@localhost>, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/52554: IPv6 connections not routing to default gateway
Date: Fri, 29 Sep 2017 01:08:55 +0900

 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