[BlueOnyx:11370] Re: 5108R IPv6 fun fact

[Gerald Waugh]

Please, disregard my previous post, as its early in the morning, now I 
don't think the ifconfig data is relevent


On 09/24/2012 08:44 AM, Gerald Waugh wrote:
> On 09/24/2012 07:59 AM, Chris Gebhardt - VIRTBIZ Internet wrote:
>> Here's a neat tip.  If you are running an IPv6-enabled network, your
>> 5108R server may decide to pick up an IPv6 IP address on its own via
>> auto-configuration.  Sendmail may then use the IPv6 address to connect
>> to other SMTP servers.  If you have not configured a PTR for that IPv6
>> address, then the mail sent via IPv6 hosts will tend to bounce as it has
>> no reverse DNS.
>>
>> We haven't seen this behavior on 5106R.
>>
>> Just thought I'd pass it along.  #LFMF
>>
> Yep some of mine have it.
> [root at mail ~]# ifconfig
> eth0      Link encap:Ethernet  HWaddr D6:F7:C7:CC:13:6B
>           inet addr:1.2.3.4  Bcast:1.2.2.4  Mask:255.255.255.0
> *inet6 addr: 1234::1234:1234:1234:1234/64* Scope:Link
>
>
> googling found this, I have used this previously for a similar issue.
>
> |# vi /etc/sysconfig/network|
> NETWORKING_IPV6=no
>   IPV6INIT=no
> Save and close the file.
> Restart networking service
> |# service network restart
>   # rmmod ipv6|
>
> -- 
> Gerald


-- 
Gerald Waugh
Front Street Networks
(318) 734-4779
(318) 401-0428
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