Re: cfservd ipv6

[Pekka Savola]

address@hidden wrote:
>Sean, I think that even this is okay. The reason the address doesn't appear is
>that the wildcard address for listening is all zeroes. This is normal. Best to
>see what happens on the client side when you try to contact that host
>(use cfagent -d2, and cfservd -d2) If you can tell me the exact messages
>at failure, on both sides, I can possible help more,

OpenBSD is the only implemention that doesn't support IPv4 when
binding to IPv6 '::' through mapped addresses.

So if you use IPv6 with OpenBSD, you MUST bind to both IPv4 and IPv6
wildcard address.  There is no other choice.

>On 27 Mar, Sean Lally wrote:
>> Thanks for pointing out that document
>> (http://www.iu.hio.no/cfengine/confdir/ipv6.html), Mark.  It explains a
>> lot.  I won't be concerned about cfengine not showing up as IPv4 in
>> netstat from now on.  I think the reason it's not working is cfservd
>> isn't binding to an IPv6 address because my system doesn't have a
>> routable IPv6 address assigned to it (based on what I read in the
>> document above; I have no experience with IPv6):  
>> 
>> # ifconfig -a
>> lo0: flags=8009<UP,LOOPBACK,MULTICAST> mtu 32972
>>         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
>>         inet6 ::1 prefixlen 128
>>         inet 127.0.0.1 netmask 0xff000000 
>> lo1: flags=8008<LOOPBACK,MULTICAST> mtu 32972
>> fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         media: Ethernet autoselect (100baseTX full-duplex)
>>         status: active
>>         inet 192.168.100.28 netmask 0xffffff00 broadcast 192.168.100.255
>>         inet6 fe80::2d0:b7ff:fe49:b1c0%fxp0 prefixlen 64 scopeid 0x1
>> 
>> The tail end (I can send the whole thing if you desire) of cfservd -d0
>> shows:
>> 
>> IPV6 address
>> sockaddr_ntop(::)
>> Bound to address ::
>> Listening for connections ...
>> Checking file updates on /var/cfengine/inputs/cfservd.conf
>> (3ca211ff/3ca21382)
>> 
>> Which looks like it's not bound to anything.  
>> 
>> Is there a way to compile cfengine without IPv6 support?  If you could
>> just point me in the right direction I could try to figure it out
>> myself.  I've been trying for the last couple of days without success. 
>> 
>> The stock OpenBSD kernel comes with IPv6 enabled.  I could recompile the
>> kernel without IPv6 to make it work, but then I'd have to do that for
>> all the boxen. 
>> 
>> Thanks so much for your time with this.
>> 
>> Sean
>> 
>> 
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: address@hidden [mailto:address@hidden
>> Sent: Tuesday, March 26, 2002 10:52 PM
>> To: Sean Lally
>> Cc: address@hidden
>> Subject: Re: cfservd ipv6
>> 
>> 
>> 
>> 
>> It doesn't matter that the host is only listening on ipv6. It
>> still hears ipv4. Take a look at the ipv6 notes in the searchable
>> index at www.cfengine.org about this. If you get connection refused
>> it is far more likely to be something else.
>> 
>> Send detailed/precise error messages if you want more help.
>> 
>> M
>> 
>> On 26 Mar, Sean Lally wrote:
>>> Hello,
>>> I searched the bug-cfengine archives (google) and couldn't find
>> anything
>>> on this.  I just installed cfengine on an openbsd 2.9 box and when I
>> run
>>> cfservd it's only listening for ipv6 according to netstat -a.
>>>
>>> tcp6       0      0  *.cfengine             *.*
>>> LISTEN
>>>
>>> also here's the tail end of cfservd -d0:
>>> ...
>>> IPV6 address
>>> sockaddr_ntop(::)
>>> Bound to address ::
>>> Listening for connections ...
>>> Checking file updates on /var/cfengine/inputs/cfservd.conf
>>> (3ca0eb4e/3ca0fb28)
>>>
>>> When I telnet localhost 5308 I get a connection refused.  I just
>>> installed the same setup on a solaris 2.6 box and cfservd seems to
>>> respond properly to the same stimulus.
>>>
>>> Is there a runtime switch that I can use to have it only listen on
>> ipv4?
>>>
>>>
>>> Thanks for any help.
>>>
>>> -Sean
>> 
>> 
>> 
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Work: +47 22453272            Email:  address@hidden
>> Fax : +47 22453205            WWW  :  http://www.iu.hio.no/~mark
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Work: +47 22453272            Email:  address@hidden
>Fax : +47 22453205            WWW  :  http://www.iu.hio.no/~mark
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>

Pekka Savola                    pekkas at netcore dot fi
---
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