Re: nd6_setmtu0: new link MTU on iwn0 (576) is too small for IPv6 which needs 1280

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Fri, 5 Dec 2014 09:41:20 +0000
    From:        Ottavio Caruso <ottavio2006-netbsd%yahoo.com@localhost>
    Message-ID:  <CAEJNuHwpdNOfn9krCtkZMRntMWs76=JuJHbiFRsW_TDQPsXuDA%mail.gmail.com@localhost>

  | As per previous post, correct.

I think I've been seeing only about a half of the messages on
this thread...   Were all of them sent to netbsd-users (cc'd or
whatever)?  I don't think I was subscribed to port-amd64 (though I
am now).


  | bash-4.3#   tcpdump -r /tmp/dump.txt
  | reading from file /tmp/dump.txt, link-type EN10MB (Ethernet)
  | 10:32:09.975761 IP 0.0.0.0.bootpc > 255.255.255.255.bootps:
  | BOOTP/DHCP, Request from 00:21:5c:55:ee:9d (oui Unknown), length 317
  | 10:32:09.980990 IP 192.168.1.1.bootps > 192.168.1.108.bootpc:
  | BOOTP/DHCP, Reply, length 548

The content of the second of those two is what would be useful to see,
but to see that, the tcpdump needs (at least) both the -s and -x options.

  | Not sure why it mentions Ethernet while I have specified iwn0.

There's no practical difference (at this level) between 802.3 and
802.11 - the interface presented by the kernel is mostly the same.
That's an irrelevant minor issue.

kre