Can i disable IPV6 in FC 9?

[amfpg]

i have do this

# vi /etc/modprobe.d/blacklist
and add this line:
		blacklist ipv6

# vi /etc/sysconfig/network
and add this line:
		NETWORKING_IPV6=no

# vi /etc/sysconfig/network-scripts/ifcfg-eth0
and add this line:
		IPV6INIT=no

after i reboot, why i can found ipv6 in my eth0 ?

eth0      Link encap:Ethernet  HWaddr 00:0C:29:AA:E0:8B  
          inet addr:192.168.100.1  Bcast:192.168.100.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:feaa:e08b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1307 errors:0 dropped:0 overruns:0 frame:0
          TX packets:46 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:125512 (122.5 KiB)  TX bytes:5540 (5.4 KiB)
          Interrupt:18 Base address:0x2000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:352 (352.0 b)  TX bytes:352 (352.0 b)

what should i do for disable ipv6 in FC 9?

thx

[marko]

This guy is saying that even if you blacklist ipv6 and do that other stuff, it
might still load the ipv6 module if something is requesting the service.

http://www.g-loaded.eu/2008/05/12/ho...ra-and-centos/

and he suggests putting in a file in /etc/modprobe.d this line

install ipv6 /bin/true

and leave in the other settings you already had but they would
likely be redundant (module doesn't load). It would also be a good
idea to turn off the ip6 firewall either with system-config-services or
chkconfig and then kill the ip6tables:

chkconfig ip6tables off
service ip6tables stop

On an unrelated blacklisting note, this answered a question I had a long
time with a webcam I have. It would always grab the sound module
(which I didn't want) because the webcam had a usb microphone in it.,
So I blacklisted the usb sound module but it would still load. Because
the usb snd module loaded first and beat my sound card,
my sound card wouldn't work. My only recourse was to make sure the web cam was always unplugged at boot time so what I should do is put in a file in /etc/modprobe.d

install snd-usb-audio /bin/true

[amfpg]

thanks marko, for your link

[lintek]

I can confirm that using the suggested solution "install ipv6 /bin/true" works perfectly. Also, this solution stopped the boot error message I was receiving -> FATAL: Module OFF not found <-

The file I created in /etc/modprobed.d is: aliases and the content is:

install net-pf-10 /bin/true
install ipv6 /bin/true

I then reboot to make sure no FATAL error messages were reported and executed ifocnfig and lsmod to make sure the module wasn't loaded.

[Evil_Bert]

Originally Posted by lintek

...this solution stopped the boot error message I was receiving -> FATAL: Module OFF not found ...

Yes, I was getting that error, too, since I still had old 'alias' settings.

Thanks for the solution - I've been looking for something like that (although the Anaconda option at install time to not enable IPV6 support for the detected interface had worked also, as well as the System>Network settings .... possible this is because nothing was calling for IPV6).

[nucleo]

I also unset execute bit on file init.ipv6-global

chmod -x /etc/sysconfig/network-scripts/init.ipv6-global

[marko]

Originally Posted by amfpg

......
# vi /etc/sysconfig/network
and add this line:
NETWORKING_IPV6=no
.......

Actually I think this setting is obsolete, you can delete it