[AusNOG] IPv6: Who's dual stacked? Why don't I look stacked?

Don Gould don at bowenvale.co.nz
Fri Mar 8 08:28:20 EST 2013


Ok let's see what answer that gives us.

thinkdesignprint.co.nz>_ ~# postconf inet_protocols
inet_protocols = ipv4
You have new mail in /var/mail/root
TDP:thinkdesignprint.co.nz>_ ~# nano /etc/postfix/main.cf
You have new mail in /var/mail/root
TDP:thinkdesignprint.co.nz>_ ~# /etc/init.d/postfix restart
Stopping Postfix Mail Transport Agent: postfix.
Starting Postfix Mail Transport Agent: postfix.
TDP:thinkdesignprint.co.nz>_ ~# postconf inet_protocols
inet_protocols = all
TDP:thinkdesignprint.co.nz>_ ~#

Sorry for the list noise, I'm not sure where else I can email that I can 
prove this.

D
On 8/03/2013 10:15 a.m., Chris Jones wrote:
>
> On 08/03/2013, at 8:11 AM, Don Gould <don at bowenvale.co.nz 
> <mailto:don at bowenvale.co.nz>> wrote:
>
>> Why don't my email headers suggest I'm dual stacked?
>>
>>
>> thinkdesignprint.co.nz <http://thinkdesignprint.co.nz>>_ ~# ifconfig
>> eth0      Link encap:Ethernet  HWaddr 00:00:20:01:85:02
>>          inet addr:117.121.243.25  Bcast:117.121.243.255 
>> Mask:255.255.255.0
>>          inet6 addr: 2403:cc00:1000:0:200:20ff:fe01:8502/64 Scope:Global
>>          inet6 addr: fe80::200:20ff:fe01:8502/64 Scope:Link
>>
>>
>> I've got an IPv6 address on my server but it doesn't look like my 
>> mail application is using it if you look at the headers in this message.
>
> From the looks of your headers you're using Postfix - look at the 
> inet_protocols setting.
>
> chrisj at mail1:~$ sudo postconf inet_protocols
> inet_protocols = all
>
> http://www.postfix.org/IPV6_README.html#configuration
>
> Regards,
>
> Chris
>
>> I discovered this because I thought it might be interesting to have a 
>> bit of a look at my favourite lists and see how we're going in 
>> industry for dual stacking.
>>
>> On 8/03/2013 9:34 a.m., Mark Smith wrote:
>> > Your sarcasm is obvious, and clearly you're the horse that doesn't 
>> want to drink water.
>>
>> Mark's comments were fear enough this morning.
>>
>> If he's bothered to take just 10 seconds to have a look at my message 
>> headers, it's no wonder he'd be thinking I'm just yanking the chain.
>>
>> I dual stacked that VPS 18 months ago, but it seems it's not playing 
>> the game.
>>
>> It's no wonder that we're only seeing 1% traffic if the traffic isn't 
>> flowing.
>>
>> D
>>
>>
>> FYI for Friday fun...
>>
>> GOOD
>> canonical name lists.ausnog.net <http://lists.ausnog.net>.
>> aliases
>> addresses 2407:9000:3::9
>> 203.161.158.9
>>
>> BAD
>> canonical name list.waikato.ac.nz <http://list.waikato.ac.nz>.
>> aliases
>> addresses 130.217.66.63
>>
>> BAD
>> canonical name forums.whirlpool.net.au <http://forums.whirlpool.net.au>.
>> aliases
>> addresses 117.53.166.22
>>
>> BAD
>> canonical name geekzone.co.nz <http://geekzone.co.nz>.
>> aliases
>> addresses 202.175.128.169
>> 202.175.128.164
>>
>> GOOD
>> www.nznog.org <http://www.nznog.org>
>> canonical name ghs.googlehosted.com.
>> aliases
>> addresses 2607:f8b0:4003:c02::79
>> 173.194.64.121
>>
>> Source:  www.domainwhitepages.com
>> -- 
>> Don Gould
>> 31 Acheson Ave
>> Mairehau
>> Christchurch, New Zealand
>> Ph: + 64 3 348 7235
>> Mobile: + 64 21 114 0699
>>
>> _______________________________________________
>> AusNOG mailing list
>> AusNOG at lists.ausnog.net
>> http://lists.ausnog.net/mailman/listinfo/ausnog
>


-- 
Don Gould
31 Acheson Ave
Mairehau
Christchurch, New Zealand
Ph: + 64 3 348 7235
Mobile: + 64 21 114 0699


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