[prev in list] [next in list] [prev in thread] [next in thread]
List: netbsd-tech-net
Subject: Re: I'm trying to make a 6rd pseudo-device
From: Geert Hendrickx <geert () hendrickx ! be>
Date: 2011-05-04 13:44:14
Message-ID: 20110504134414.GA5828 () boris ! ghen ! be
[Download RAW message or body]
On Fri, Jan 21, 2011 at 15:05:05 -0500, Patrick Klos wrote:
> Hello tech-net:
>
> I am trying to make my own 6rd pseudo-device for NetBSD (partly, to
> try to use Comcast's 6rd support, and partly to learn more about how
> these kinds of drivers work?). I'm building with current (5.99.43).
>
> I modeled my 'sixrd' driver after the 'stf' driver since they're
> both doing almost the same tunneling with just a few different
> rules.
>
> After creating the device, I configure it with the IPv6 address
> 2001:55c:62d8:93c7::1:
>
> ifconfig sixrd0 inet6 2001:55c:62d8:93c7::1 prefixlen 32
>
> Then I try to ping6 to 2001:55c:62d8:93c7::2 which should force the
> packets to/thru my driver, but instead, I get the following:
>
> lily# ping6 2001:55c:45fc:5042::2
> PING6(56=40+8+8 bytes) 2001:55c:62d8:93c7::1 --> 2001:55c:45fc:5042::2
> ping6: sendmsg: Message too long
> ping6: wrote 2001:55c:45fc:5042::2 16 chars, ret=-1
> ping6: sendmsg: Message too long
> ping6: wrote 2001:55c:45fc:5042::2 16 chars, ret=-1
> ping6: sendmsg: Message too long
> ping6: wrote 2001:55c:45fc:5042::2 16 chars, ret=-1
> ^C
> --- 2001:55c:45fc:5042::2 ping6 statistics ---
> 3 packets transmitted, 0 packets received, 100.0% packet loss
>
> I have a debug statement in the sixrd_output() routine, so I'd see
> if any packets were trying to be sent.
>
> It's almost as if the IPv6 stack is checking the length, and
> thinking the packet is too big to send on the target interface?
>
> My device's settings are all identical to what the stf driver uses.
> Any ideas?
>
> Thanks,
>
> Patrick Klos
Hi Patrick,
did you get this working eventually? Do you have code to share?
Geert
--
geert.hendrickx.be :: geert@hendrickx.be :: PGP: 0xC4BB9E9F
This e-mail was composed using 100% recycled spam messages!
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic