What is "sit0" for (in ifconfig -a)? Can I get rid of it ?

[Mark Haney]

Marcelo Magno T. Sales wrote:
> Hi,
>
> Em Sexta 12 Janeiro 2007 10:51, Robert Locke escreveu:
>   
>> On Fri, 2007-01-12 at 10:07 +0200, Ian Brown wrote:
>>     
>>> Hello,
>>>
>>> I have a newly installer FC6 on x86_64, and when I run
>>> ifconfig -a I get at the bottom
>>> ...
>>> ...
>>>
>>> sit0      Link encap:IPv6-in-IPv4
>>>           NOARP  MTU:1480  Metric:1
>>>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>>>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>>>           collisions:0 txqueuelen:0
>>>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
>>>
>>>
>>> I have two questions regarding this:
>>> can I get rid of this sit0, so that in next boot it will not
>>> appear when I run "ifconfig -a" ? I don't use ipv6 (and will not
>>> use it until at least FC7 , but probably also not after FC7 is out).
>>> And I don't use ppp/slip on this machine (nor any special
>>> net features).
>>>
>>> Second: when I run "lsmod" I see : "ipv6" ; can I get rid of this module
>>> so that in next boot it will not appear ? (As said, I will **not** use
>>> ipv6 in the near future).
>>>
>>> Regards,
>>> Ian
>>>       
>> Ian,
>>
>> Add two lines to your /etc/modprobe.conf:
>>
>> alias ipv6 off
>> alias net-pf-10 off
>>
>> Then, after you reboot, both the sit0 and the ipv6 module will not
>> load...
>>     
>
> But what is this sit0 interface?
>
> Thanks, 
>
> Marcelo
>
>   
The sit interface is a IPv6 to v4 tunnel interface.  IIRC.


-- 
Mark Haney
Sr. Systems Administrator	
ERC Broadband