Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-16 Thread Thomas Steen Rasmussen 
On 14.10.2011 10:26, Thomas Steen Rasmussen wrote:
 On 14-10-2011 10:09, Hiroki Sato wrote:
  Thanks.  There is no problem with the source address selection. 

I don't understand this comment. I would say that I do
have problems with the source address selection -
otherwise it would be preferring ipv6, right ?

I have tried working around this problem by adding:
ip6addrctl_policy=ipv6_prefer
to /etc/rc.conf but I still get the same behaviour:

[tykling@tykburk ~]$ telnet www.freebsd.org 80  /dev/null
Trying 69.147.83.34...
Connected to red.freebsd.org.
Escape character is '^]'.
Connection closed by foreign host.
[tykling@tykburk ~]$ telnet -6 www.freebsd.org 80  /dev/null
Trying 2001:4f8:fff6::22...
Connected to red.freebsd.org.
Escape character is '^]'.
Connection closed by foreign host.
[tykling@tykburk ~]$

Does anyone know a usable workaround which I can use to
make my machine prefer ipv6 over ipv4, until this problem is fixed ?

Thanks!

Thomas Steen Rasmussen
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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-16 Thread Hiroki Sato 
Thomas Steen Rasmussen tho...@gibfest.dk wrote
  in 4e9aa874.5070...@gibfest.dk:

th On 14.10.2011 10:26, Thomas Steen Rasmussen wrote:
th  On 14-10-2011 10:09, Hiroki Sato wrote:
th   Thanks.  There is no problem with the source address selection.
th
th I don't understand this comment. I would say that I do
th have problems with the source address selection -
th otherwise it would be preferring ipv6, right ?

 I mean the address selection is working properly.  Your problem is
 because the default ipv6_prefer policy prefers IPv4 addresses when
 the source IPv6 addr is in 2002::/16, the destination IPv6 address is
 not in the same prefix, and IPv4 addresses can be used for the both.
 It is not a bug of the selection mechanism.

 The ipv6_prefer policy is defined in RFC 3484 2.1 and this policy
 chooses a src IPv6 addr in 2002::/16 only if the dest addr is also in
 the same prefix.  You can remove the special rule for 2002::/16 by
 putting the following lines as /etc/ip6addrctl.conf and reboot the
 system:

 ::1/128  50  0
 ::/0 40  1
 #2002::/16   30  2
 ::/9620  3
 :::0:0/9610  4

 By installing the above, IPv6 address will be preferred even if it is
 in 2002::/16.

 I am still not sure why there is a difference between 8.X and 9.X on
 your box because the code is almost the same.  I guess no policy was
 installed when you used an 8-stable system.

-- Hiroki


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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-16 Thread Thomas Steen Rasmussen 
On 16.10.2011 21:29, Hiroki Sato wrote:
 Thomas Steen Rasmussen tho...@gibfest.dk wrote
   in 4e9aa874.5070...@gibfest.dk:

 th On 14.10.2011 10:26, Thomas Steen Rasmussen wrote:
 th  On 14-10-2011 10:09, Hiroki Sato wrote:
 th   Thanks.  There is no problem with the source address selection.
 th
 th I don't understand this comment. I would say that I do
 th have problems with the source address selection -
 th otherwise it would be preferring ipv6, right ?

  I mean the address selection is working properly.  Your problem is
  because the default ipv6_prefer policy prefers IPv4 addresses when
  the source IPv6 addr is in 2002::/16, the destination IPv6 address is
  not in the same prefix, and IPv4 addresses can be used for the both.
  It is not a bug of the selection mechanism.

  The ipv6_prefer policy is defined in RFC 3484 2.1 and this policy
  chooses a src IPv6 addr in 2002::/16 only if the dest addr is also in
  the same prefix.  You can remove the special rule for 2002::/16 by
  putting the following lines as /etc/ip6addrctl.conf and reboot the
  system:

  ::1/128  50  0
  ::/0 40  1
  #2002::/16   30  2
  ::/9620  3
  :::0:0/9610  4

  By installing the above, IPv6 address will be preferred even if it is
  in 2002::/16.
Hello,

I understand. Thank you for your time, and sorry for the noise.

Best regards

Thomas Steen Rasmussen
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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-14 Thread Thomas Steen Rasmussen 
On 14.10.2011 02:52, Hiroki Sato wrote:
  Can you please send me the results of the following commands:

Please see the output below each command. I forgot to
mention that the ipv6 uplink is a 6to4 tunnel, as you can
see below from the 2002: prefix.


  % ifconfig

[tykling@tykburk ~]$ ifconfig
re0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500
   
options=389bRXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_UCAST,WOL_MCAST,WOL_MAGIC
ether 00:24:8c:02:de:01
inet6 fe80::224:8cff:fe02:de01%re0 prefixlen 64 scopeid 0x5
inet6 2002:d947:452:1:224:8cff:fe02:de01 prefixlen 64 autoconf
inet 10.10.1.115 netmask 0xff00 broadcast 10.10.1.255
nd6 options=23PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL
media: Ethernet autoselect (100baseTX full-duplex)
status: active
fwe0: flags=8943UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST metric
0 mtu 1500
options=8VLAN_MTU
ether 02:1e:8c:b6:37:7b
inet6 fe80::1e:8cff:feb6:377b%fwe0 prefixlen 64 scopeid 0x6
nd6 options=21PERFORMNUD,AUTO_LINKLOCAL
ch 1 dma 0
fwip0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500
lladdr 0.1e.8c.0.1.b6.37.7b.a.2.ff.fe.0.0.0.0
inet6 fe80::21e:8c00:1b6:377b%fwip0 prefixlen 64 scopeid 0x7
nd6 options=21PERFORMNUD,AUTO_LINKLOCAL
em0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500
   
options=209bRXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC
ether 00:1b:21:32:fe:80
inet6 fe80::21b:21ff:fe32:fe80%em0 prefixlen 64 scopeid 0xc
nd6 options=21PERFORMNUD,AUTO_LINKLOCAL
media: Ethernet autoselect
status: no carrier
lo0: flags=8049UP,LOOPBACK,RUNNING,MULTICAST metric 0 mtu 16384
options=3RXCSUM,TXCSUM
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0xd
inet 127.0.0.1 netmask 0xff00
nd6 options=21PERFORMNUD,AUTO_LINKLOCAL

  % grep ^ipv6 /etc/rc.conf

[tykling@tykburk ~]$ grep ^ipv6 /etc/rc.conf
ipv6_activate_all_interfaces=YES

  % grep ipv6= /etc/rc.conf

[tykling@tykburk ~]$ grep ipv6= /etc/rc.conf
ifconfig_re0_ipv6=accept_rtadv

  % ip6addrctl show

[tykling@tykburk ~]$ ip6addrctl show
Prefix  Prec Label  Use
::1/128   50 00
::/0  40 1 2266
2002::/16 30 2 1164
::/96 20 30
:::0.0.0.0/96 10 40

  # /bin/sh -x /etc/rc.d/ip6addrctl start

[tykling@tykburk ~]$ sudo /bin/sh -x /etc/rc.d/ip6addrctl start
+ . /etc/rc.subr
+ : 'rc.conf(5)'
+ : 47981
+ export RC_PID
+ [ -z '' ]
+ _rc_subr_loaded=YES
+ SYSCTL=/sbin/sysctl
+ SYSCTL_N='/sbin/sysctl -n'
+ SYSCTL_W=/sbin/sysctl
+ ID=/usr/bin/id
+ IDCMD='if [ -x /usr/bin/id ]; then /usr/bin/id -un; fi'
+ PS='/bin/ps -ww'
+ /bin/ps -ww -p 47981 -o jid=
+ JID=' 0'
+ _rc_subr_loaded=:
+ . /etc/network.subr
+ name=ip6addrctl
+ set_rcvar
+ echo ip6addrctl_enable
+ rcvar=ip6addrctl_enable
+ start_cmd=ip6addrctl_start
+ stop_cmd=ip6addrctl_stop
+ extra_commands='status prefer_ipv6 prefer_ipv4'
+ status_cmd=ip6addrctl
+ prefer_ipv6_cmd=ip6addrctl_prefer_ipv6
+ prefer_ipv4_cmd=ip6addrctl_prefer_ipv4
+ config_file=/etc/ip6addrctl.conf
+ set_rcvar_obsolete ipv6_enable ipv6_activate_all_interfaces
+ local _var
+ _var=ipv6_enable
+ debug 'rcvar_obsolete: $ipv6_enable(old) -
$ipv6_activate_all_interfaces(new) is defined'
+ rcvars_obsolete=' ipv6_enable'
+ eval 'ipv6_enable_newvar=ipv6_activate_all_interfaces'
+ ipv6_enable_newvar=ipv6_activate_all_interfaces
+ shift 2
+ eval 'ipv6_enable_obsolete_msg='
+ ipv6_enable_obsolete_msg=''
+ set_rcvar_obsolete ipv6_prefer ip6addrctl_policy
+ local _var
+ _var=ipv6_prefer
+ debug 'rcvar_obsolete: $ipv6_prefer(old) - $ip6addrctl_policy(new) is
defined'
+ rcvars_obsolete='ipv6_enable ipv6_prefer'
+ eval 'ipv6_prefer_newvar=ip6addrctl_policy'
+ ipv6_prefer_newvar=ip6addrctl_policy
+ shift 2
+ eval 'ipv6_prefer_obsolete_msg='
+ ipv6_prefer_obsolete_msg=''
+ load_rc_config ip6addrctl
+ local _name _var _defval _v _msg _new
+ _name=ip6addrctl
+ [ -z ip6addrctl ]
+ false
+ [ -r /etc/defaults/rc.conf ]
+ debug 'Sourcing /etc/defaults/rc.conf'
+ . /etc/defaults/rc.conf
+ rc_debug=NO
+ rc_info=NO
+ rc_startmsgs=YES
+ rcshutdown_timeout=30
+ early_late_divider=FILESYSTEMS
+ swapfile=NO
+ apm_enable=NO
+ apmd_enable=NO
+ apmd_flags=''
+ ddb_enable=NO
+ ddb_config=/etc/ddb.conf
+ devd_enable=YES
+ devd_flags=''
+ kldxref_enable=NO
+ kldxref_clobber=NO
+ kldxref_module_path=''
+ powerd_enable=NO
+ powerd_flags=''
+ tmpmfs=AUTO
+ tmpsize=20m
+ tmpmfs_flags=-S
+ varmfs=AUTO
+ varsize=32m
+ varmfs_flags=-S
+ populate_var=AUTO
+ cleanvar_enable=YES
+ local_startup=/usr/local/etc/rc.d
+ script_name_sep=' '
+ rc_conf_files='/etc/rc.conf /etc/rc.conf.local'
+ zfs_enable=NO
+ gptboot_enable=YES
+ gbde_autoattach_all=NO
+ gbde_devices=NO
+ gbde_attach_attempts=3
+ gbde_lockdir=/etc
+ geli_devices=''
+ geli_tries=''
+

Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-14 Thread Hiroki Sato 
Thomas Steen Rasmussen tho...@gibfest.dk wrote
  in 4e97cffc.5020...@gibfest.dk:

th On 14.10.2011 02:52, Hiroki Sato wrote:
th   Can you please send me the results of the following commands:
th
th Please see the output below each command. I forgot to
th mention that the ipv6 uplink is a 6to4 tunnel, as you can
th see below from the 2002: prefix.

 Okay, what is the result of the following?

 % telnet www.freebsd.org 80  /dev/null

-- Hiroki


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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-14 Thread Thomas Steen Rasmussen 
On 14.10.2011 08:14, Hiroki Sato wrote:
 telnet www.freebsd.org 80  /dev/null
[tykling@tykburk ~]$ telnet www.freebsd.org 80  /dev/null
Trying 69.147.83.34...
Connected to red.freebsd.org.
Escape character is '^]'.
Connection closed by foreign host.

/Thomas
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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-14 Thread Hiroki Sato 
Thomas Steen Rasmussen tho...@gibfest.dk wrote
  in 4e97d9f3.4020...@gibfest.dk:

th On 14.10.2011 08:14, Hiroki Sato wrote:
th  telnet www.freebsd.org 80  /dev/null
th [tykling@tykburk ~]$ telnet www.freebsd.org 80  /dev/null
th Trying 69.147.83.34...
th Connected to red.freebsd.org.
th Escape character is '^]'.
th Connection closed by foreign host.

 Thanks.  There is no problem with the source address selection.  The
 last questions are:

 % route get -inet www.freebsd.org
 % route get -inet6 www.freebsd.org
 % netstat -nrf inet6
 % ndp -r

 I guess the second one returns route: writing to routing socket: No
 such process on your box.  Is it correct?

-- Hiroki


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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-14 Thread Thomas Steen Rasmussen 
On 14-10-2011 10:09, Hiroki Sato wrote:
  Thanks.  There is no problem with the source address selection. The
  last questions are:

  % route get -inet www.freebsd.org

[tykling@tykburk ~]$ route get -inet www.freebsd.org
   route to: red.freebsd.org
destination: default
   mask: default
gateway: fitfw
  interface: re0
  flags: UP,GATEWAY,DONE,STATIC
 recvpipe  sendpipe  ssthresh  rtt,msecmtuweightexpire
   0 0 0 0  1500 1 0

  % route get -inet6 www.freebsd.org

[tykling@tykburk ~]$ route get -inet6 www.freebsd.org
   route to: red.freebsd.org
destination: ::
   mask: default
gateway: fe80::20d:f0ff:fe8d:4d23%re0
  interface: re0
  flags: UP,GATEWAY,DONE
 recvpipe  sendpipe  ssthresh  rtt,msecmtuweightexpire
   0 0 0 0  1500 1 0

  % netstat -nrf inet6

[tykling@tykburk ~]$ netstat -nrf inet6
Routing tables

Internet6:
Destination   Gateway  
Flags  Netif Expire
::/96 ::1  
UGRSlo0 =
default   fe80::20d:f0ff:fe8d:4d23%re0 
UG  re0
::1   ::1  
UH  lo0
:::0.0.0.0/96 ::1  
UGRSlo0
2002:d947:452:1::/64  link#5   
U   re0
2002:d947:452:1:224:8cff:fe02:de01 link#5   
UHS lo0
fe80::/10 ::1  
UGRSlo0
fe80::%re0/64 link#5   
U   re0
fe80::224:8cff:fe02:de01%re0  link#5   
UHS lo0
fe80::%fwe0/64link#6   
U  fwe0
fe80::1e:8cff:feb6:377b%fwe0  link#6   
UHS lo0
fe80::%fwip0/64   link#7   
U fwip0
fe80::21e:8c00:1b6:377b%fwip0 link#7   
UHS lo0
fe80::%em0/64 link#12  
U   em0
fe80::21b:21ff:fe32:fe80%em0  link#12  
UHS lo0
fe80::%lo0/64 link#13  
U   lo0
ff01::%re0/32 fe80::224:8cff:fe02:de01%re0 
U   re0
ff01::%fwe0/32fe80::1e:8cff:feb6:377b%fwe0 
U  fwe0
ff01::%fwip0/32   fe80::21e:8c00:1b6:377b%fwip0
U fwip0
ff01::%em0/32 fe80::21b:21ff:fe32:fe80%em0 
U   em0
ff01::%lo0/32 ::1  
U   lo0
ff02::/16 ::1  
UGRSlo0
ff02::%re0/32 fe80::224:8cff:fe02:de01%re0 
U   re0
ff02::%fwe0/32fe80::1e:8cff:feb6:377b%fwe0 
U  fwe0
ff02::%fwip0/32   fe80::21e:8c00:1b6:377b%fwip0
U fwip0
ff02::%em0/32 fe80::21b:21ff:fe32:fe80%em0 
U   em0
ff02::%lo0/32 ::1  
U   lo0

  % ndp -r

[tykling@tykburk ~]$ ndp -r
fe80::20d:f0ff:fe8d:4d23%re0 if=re0, flags=, pref=medium, expire=28m15s

  I guess the second one returns route: writing to routing socket: No
  such process on your box.  Is it correct?

No, it returns the route to red.freebsd.org / 2001:4f8:fff6::22 (which is
the default route of course).

Extra info:

[tykling@tykburk ~]$ telnet -6 www.freebsd.org 80  /dev/null
Trying 2001:4f8:fff6::22...
Connected to red.freebsd.org.
Escape character is '^]'.
Connection closed by foreign host.

Thanks,

Thomas
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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-14 Thread Hajimu UMEMOTO 
Hi,

 On Fri, 14 Oct 2011 17:09:11 +0900 (JST)
 Hiroki Sato h...@freebsd.org said:

hrs Thomas Steen Rasmussen tho...@gibfest.dk wrote
hrs   in 4e97d9f3.4020...@gibfest.dk:

th On 14.10.2011 08:14, Hiroki Sato wrote:
hrs th  telnet www.freebsd.org 80  /dev/null
th [tykling@tykburk ~]$ telnet www.freebsd.org 80  /dev/null
th Trying 69.147.83.34...
th Connected to red.freebsd.org.
th Escape character is '^]'.
th Connection closed by foreign host.

hrs  Thanks.  There is no problem with the source address selection.  The
hrs  last questions are:

hrs  % route get -inet www.freebsd.org
hrs  % route get -inet6 www.freebsd.org
hrs  % netstat -nrf inet6
hrs  % ndp -r

hrs  I guess the second one returns route: writing to routing socket: No
hrs  such process on your box.  Is it correct?

AFAIK, recent Firefox implements Happy Eyeballs.  So, I suspect it
doesn't obey RFC 3484, anymore.

Sincerely,

--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
u...@mahoroba.org  ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/
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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-14 Thread Doug Barton 
On 10/14/2011 10:38, Hajimu UMEMOTO wrote:
 AFAIK, recent Firefox implements Happy Eyeballs.  So, I suspect it
 doesn't obey RFC 3484, anymore.

My understanding is that they added it, then turned it off because it
didn't work as expected.

-- 

Nothin' ever doesn't change, but nothin' changes much.
-- OK Go

Breadth of IT experience, and depth of knowledge in the DNS.
Yours for the right price.  :)  http://SupersetSolutions.com/

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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-13 Thread Thomas Steen Rasmussen 
On 14.10.2011 00:31, Thomas Steen Rasmussen wrote:
 Hello list,

 I just upgraded my home workstation to 9.0-beta3 amd64. It seems
 like my web browsers are preferring ipv4 over ipv6 after the upgrade,

My laptop is also running 9.0-beta3 amd64 and I observe
the same behaviour there, so this doesn't seem like an
issue with a specific machine.

On IRC I was advised to include h...@freebsd.org as cc
in this thread.

Best regards

Thomas Steen Rasmussen

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Re: 9.0-beta3 preferring ipv4 over ipv6 with ipv6_activate_all_interfaces=YES

2011-10-13 Thread Hiroki Sato 
Thomas Steen Rasmussen tho...@gibfest.dk wrote
  in 4e9766c0.1020...@gibfest.dk:

th Hello list,
th
th I just upgraded my home workstation to 9.0-beta3 amd64. It seems
th like my web browsers are preferring ipv4 over ipv6 after the upgrade,
th I tested Firefox and Opera. After digging into rc.conf(5) I found this bit:
th
th  If ``AUTO'' is specified, it attempts to read a file
th  /etc/ip6addrctl.conf first.  If this file is found,
th  ip6addrctl(8) reads and installs it.  If not found, a policy
th  is automatically set according to
th  ipv6_activate_all_interfaces variable; if the variable is set
th  to ``YES'' the IPv6-preferred one is used.  Otherwise
th  IPv4-preferred.
th
th  The default value of ip6addrctl_enable and ip6addrctl_policy
th  are ``YES'' and ``AUTO'', respectively.
th
th I already have ipv6_activate_all_interfaces=YES in /etc/rc.conf
th so ip6addrctl_policy _should_ be ip6addrctl_policy if I am reading
th this correctly. But my browsers still prefer ipv4. Is this a bug, or
th do the manpage need updating ?

 Can you please send me the results of the following commands:

 % ifconfig

 % grep ^ipv6 /etc/rc.conf

 % grep ipv6= /etc/rc.conf

 % ip6addrctl show

 # /bin/sh -x /etc/rc.d/ip6addrctl start

-- Hiroki


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