how to disable IPv6 dynamic link local
location: ubuntuforums.com - date: July 13, 2014
I am trying to configure a host using dual stack (IPv4 and IPv6).
I setup a static IPv6 address in /etc/network/interfaces:
iface eth0 inet6 static
However, ifconfig shows that I have both a dynamic and a static link local IPv6 address. The first uses EUI to create the Interface ID and I don't want that even on the local segment.
eth0 Link encap:Ethernet HWaddr 00:25:22:XX:XX:XX
inet6 addr: fe80::225:22ff:feXX:XXX/64 Scope:Link
inet6 addr: fe80:a:a:1::2/64 Scope:Link
Autoconfiguration is disabled in /etc/sysctl.conf
net.ipv6.conf.all.autoconf = 0
It's the first IPv6 host in the network, no IPv6 router (even though a gateway is specified in the interfaces file).
Any idea about how can I disable the dynamic autoconf for the link local?
How can I disable IPv6 to speed up my Internet in UBUNTU 11.04?
location: ubuntuforums.com - date: June 8, 2011
I am a complete newbie
How can I disable IPv6 to speed up my Internet?
I have been looking through different terminal codes to enter and haven't found any instructions that disable IPv6 among the instructions available though a google search.
How do i disable IPv6 on ubuntu 10.04?
location: ubuntuforums.com - date: August 9, 2010
Anyone know how to disable IPv6 but still use IPv4?
How To Disable IPV6 in Ubuntu 9.04 ? HELP PLEASE!
location: ubuntuforums.com - date: April 25, 2009
Please, help needed!
Network became slow due to the unsupported ipv6 protocol.
In the past I used to fix it in /etc/modprobe.d/aliases, but now it is built in the kernel. I don't like the idea to recompile it.
Anyway I've somehow found two ways:
1) Add to the /etc/modprobe.d/blacklist.conf the following:
2) Put "1" into /proc/sys/net/ipv6/conf/all/disable_ipv6
So I tried them both and nothing works actually
To check if it is disabled you can in the console:
ip a | grep inet6
If it is disabled there will be no output.
I've also came across some bug reports concerning this issue (inability to switch off ipv6).
I urgently need help since it is unsupported in my country and networking is slower than it was under 8.10 (or in Windoze).
Thank you in advance!
How to Disable ipv6 in Ubuntu 9.10?
location: ubuntuforums.com - date: October 31, 2009
In this thread, http://ubuntuforums.org/showthread.php?t=1036068 ,
I identify by log entries that DHCP is failing during wireless network setup, causing a loop asking for the WEP password for the connection...
Google indicates this may be caused by presence of ipv6 DHCP calls which are incompatible with the wireless router software. FTR, I am using a stock unmodified verizon fios router.
I would like to test this theory by disabling ipv6 on the wireless link and seeing if ipv4-only dhcp transactions are successful.
I cannot find current instructions on how to do so;
help would be appreciated.
Without this step I cannot enter an accurate bug report and help the community by eliminating this issue through identification of root cause.
How to Disable ipv6 in ubuntu 9.04
location: linuxquestions.com - date: April 2, 2009
I have tried to disable the ipv6 support in ubuntu 9.04 32bit but the /etc/modprobe.d/aliases does not exist so I can't disable the suport as sugested for the previews versions. I need to disable it becouse it is pounding a total maihem in my vamware machines.
So if enyone knows the solution .. pleas help!
How would i disable ipv6 for eth0 ?
location: linuxquestions.com - date: November 27, 2009
It's pppoe connection.
If i do ifconfig, eth0 ip is with this format
How to disable ipv6 in Jaunty
location: ubuntuforums.com - date: February 10, 2009
I have found out my ISP's DNS server does not like IPv6 very much.
It appears Jaunty now has ipv6 built into the kernel instead of as a module, so changing /etc/modules.d/aliases to disable ipv6 does not work.
I am wondering then, how do you disable ipv6 in Jaunty?
referencing hosts by (special) hostname for IPv6 link local address
location: linuxquestions.com - date: April 30, 2010
I can reach other hosts by means of their global addresses by either the IP address or hostname (that has the global address). What I want to (also) do is have a hostname that references the IPv6 link local IP address (an AAAA record in DNS, or just the fe80::<whatever> address in /etc/hosts) and use that host name in commands to access that host. The problem is, an interface ID is needed when making such a reference. So a reference by IP address might look like:
How to disable ipv6?
location: linuxquestions.com - date: March 31, 2012
all applications that need an Internet connection works very slowly, because of ipv6 I think. I disabled ipv6 in firefox and everything is ok now, but what about all others like wget, mail etc? How to permanently disable ipv6 in slackware 13.37, I tried blacklist ipv6 in /etc/modprobe.d/blacklist but it doesn't work. Help!
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