How to disable IPV6 on localhost

Someone known how to disable ipv6 on the lo0 interface ?

I need to temporary disable ipv6 address of lo0 (which by the way is not 127.0.0.1 but ::1) for testing development purpose..

Similar Messages

How to disable IPv6 for loopback adapter (lo0)

I was wondering if anyone knows how to disable IPv6 for the loopback (lo0) adpater. I know how to do it for other adapters using the Network preferences pane, but lo0 doesn't appear there...
Thanks,
- alan

I need to temporary disable ipv6 address of lo0 (which by the way is not 127.0.0.1 but ::1) for testing development purpose..

HT4667 How to disable IPv6 on MAC OS X Lion?

Hi everyone,
I am using Macbook Air OS X Lion. I have been facing slow internet browsing problem from quite a while now. I checked the forums and found that lot of people are facing the same problem. Also found that disabling IPv6 or setting it to manual mode will help fixing the issue. But another big challenge is how to do it. I tried setting it to manual which would need router address, IPv6 address and prefix length which is supposed to be collected from your ISP. Unfortunately Comcast hasnt implemented IPv6 yet so couldnt find that information. Also couldnt find the disable option as mentioned in one of the Apple article.
So I am stuck with Macbook air with slow internet speed. If anybody could help, it would be much apprecaited.
Thanks,
SJ

robughblah wrote:
see https://answers.syr.edu/display/network/Disable+IPv6+on+Mac+Lion+and+Mountain+Li on
This solved my problem. Thanks

EA3500 Smart Wi Fi - How to disable IPV6 to address Parental Control Issue

Hi
I've been reading that parental controls does not work with IPV6.
I would like to disable IPV6.
How would I do that?
P.S.: I noticed responses for EA4500 that there is a check box to disable the IPV6. Very straight forward but my interface
does not have the same layout of the GUI.
Thanks

Hi petroski1, the process of disabling IPv6 in your router depends if you’re using the Classic user interface or the Linksys Smart Wi-Fi. You may refer to this link, for instructions: http://kb.linksys.com/Linksys/ukp.aspx?pid=80&app=vw&vw=1&login=1&json=1&docid=bd520bcb07a6474596169...
If you’re using the Classic one, select IPv6 under the Setup tab and just disable it. And if you’re also using the Linksys Smart WI-Fi, go to Connectivity, select Internet settings, click on IPv6 click edit and make sure to uncheck the enable box.

How to disable ipv6 address autoconfiguration ???

I am trying to disable ipv6 stateless address autoconfiguration to implement what this document describes:
http://docs.sun.com/app/docs/doc/816-4554/6maoq01o3?a=view
There are several problems though:
1)The manual says that something must be put inside the hostname6.xxx file but then goes on to give the command as it should be given from the command line instead of the content of the file. The manual should provide some form of exapmle content for the file.
2)I go to /etc/inet/ndpd.conf and put "ifdefault StatelessAddrConf false" inside, then I pkill -HUP in.ndpd and finally I issue ifconfig eri0 inet6 token fe80::c/10. However nothing happens. The interface address remains the one generated through autoconfiguration.
Could someone that has knowledge of this subject provide any help?
Thanks very much,
Thanasis

Hi,
I have a same problem, and think we didn't understand the documentation.
Here is the link of the ndpd.conf configuration page:
http://docs.sun.com/app/docs/doc/816-4554/6maoq01qt?a=view#ipv6-ref-10
I think this is the right sintax:
if
Sets per-interface parameters. Use the following syntax:
if interface [variable-value]
Table 11�3 /etc/inet/ndpd.conf Interface Configuration Variables
StatelessAddrConf
True
Controls whether the node configures its IPv6 address through stateless address autoconfiguration. If False is declared in ndpd.conf, then the address must be manually configured. For more information, refer to How to Configure a User-Specified IPv6 Token.
I think the variable is this: StatelessAddrConf
if-variable-name StatelessAddrConf false
I think: if StatelessAddrConf false
But I found the 'false' parameter with uppercase and lowercase letter.
(It is not working for me!)
And I found another configuration file, what is include the rules of the address (/usr/sbin/ipaddrsel ).
Here is the link:
http://docs.sun.com/app/docs/doc/816-5166/6mbb1kq56?a=view
Maybe, I found the solution.
http://docs.sun.com/app/docs/doc/816-4554/6maoq01qt?a=view#ipv6-ref-10
You can creat a logical interface, and you can set the IP address of this interface.
Example 11�6 Adding a Logical IPv6 Interface With the -addif Option of the ifconfig Command
The following form of the ifconfig command creates the hme0:3 logical interface:
// this is teh example, and it is not perfect on Sol10
# ifconfig hme0 inet6 addif up
Created new logical interface hme0:3
This form of ifconfig verifies the creation of the new interface:
# ifconfig hme0:3 inet6
hme0:3: flags=2000841<UP,RUNNING,MULTICAST,IPv6> mtu 1500 index 2
inet6 inet6 fe80::203:baff:fe11:b321/10
Here is my solution:
ifconfig e1000g0 inet6 addif 1234:0000:0000:0000:0200:50FF:FE09:B980/10
ifconfig e1000g0:1 inet6 up
# ifconfig -a6
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
inet6 ::1/128
e1000g0: flags=2000840<RUNNING,MULTICAST,IPv6> mtu 1500 index 2
inet6 fe80::20d:60ff:feee:aba8/10
ether 0:d:60:ee:ab:a8
e1000g0:1: flags=2000841<UP,RUNNING,MULTICAST,IPv6> mtu 1500 index 2
inet6 1234::200:50ff:fe09:b980/10
I have special IP address, but I don't know that it is working or not.
If you have any idea, please write!
Br,
Sanyi

How to disable ipv6 mail in Server?

I'm not doing ipv6 addressing on my server, and I'd prefer not to get the "No route to host" messages in the mail log for the v6 attempts. I've turned off ipv6 addressing altogether with the "networksetup" command, and did the "usual" thing of setting inet_interfaces to ipv4 in the postfix config file, /Library/Server/Mail/Config/postfix/main.cf. However, when I restart the mail service through the server control panel (or, presumably, on system restart), some part of server is clobbering my change, setting the value of inet_interfaces back to all, thus re-enabling ipv6. You'd think that Server would notice that ipv6 is turned off and adjust itself accordingly, but no such luck, it seems. Or have I missed something? Is there any way to do this? Thanks!

What i would do is trace back the launch daemons. Usually these are under "/Library/LauchDaemons" or "/System/Library/LaunchDaemons".
These plist files tell launchd how to launch certain applications. Usually they trigger shell scripts or a deamon directly. I don't have access to my server at the moment so i cannot look to see which daemon is causing this. Anyways i would search all of the files relating to the server functions and find which one is resetting your network interfaces.
Now there is a possibilty that OS X uses ipv6 internally, and if so turning it off may cause problems. This is similar to how OS X requires good DNS resolution, because OS X uses it's own hostname to communicate with itself. If you have bad DNS resoltution it will slow to a crawl. Keep in mind Apple designed the new server app so that anyone could start a server, and not know anything about ipv6 or ipv4.

How can I disable IPv6 EUI randomization with group policy?

I need to turn off IPv6 EUI address randomization. It can be done in netsh (a few commands) or powershell (Set-NetIPv6Protocol -RandomizeIdentifiers Disabled). How can I do this in group policy without scripting?

Hi Jordan,
Before going further, I hope that the suggestion provided by Martin can be helpful.
It seems that we can't configure this setting via native policy.To configure IPv6 settings,
we need to download ADMX files for IPv6. However, per the following article, the IPv6 settings that can be configured are:
Enable all IPv6 components
(Windows default)
Disable all IPv6
components (the setting you probably want)
Disable 6to4
Disable ISATAP
Disable Teredo
Disable Teredo and 6to4
Disable all tunnel
interfaces
Disable all LAN and PPP
interfaces
Disable all LAN, PPP and tunnel
interfaces
Prefer IPv4 over IPv6
How to Disable IPv6 through Group Policy
http://social.technet.microsoft.com/wiki/contents/articles/5927.how-to-disable-ipv6-through-group-policy.aspx
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Best regards,
Frank Shen
Please read the question before marking things as answers.

How to prevent IPV6 entries in DNS from server End

Hello,
My concern is to stop the IPV6 DNS entries being added to the DNS , but the main goal is to prevent it from the server end instead of going and disabling the IPV6 entries on each client machine.
I have gone through this article but my goal is to fix it from the server end
http://social.technet.microsoft.com/Forums/en-US/cd1a87f0-caf3-498e-9a20-e728e474b626/how-to-prevent-ipv6-addresses-from-being-registered-in-dns-server?forum=winserverDS
Looking forward for the reply.
Muhammad Asif Server Administrator Linux/Windows

Hi,
You can use Group Policy to disable IPV6 on clients within your domain, assuming you have an Acgive Directory environment.
There are ADM/ADMX templates that are actually doing this. You just have to import it on PolicyDefinition folder on one of your domain controller then configure a group opliy and link it to your structure.
http://social.technet.microsoft.com/wiki/contents/articles/5927.how-to-disable-ipv6-through-group-policy.aspx
Hope this help.
Regards,
Calin

Disable ipv6 from uboot

How can I disable IPv6 in the kernel from uboot? I am using a ZyXel NSA 320

ewaller wrote:Moving to Other Architectures. Unfortunately, U-boot is definitely in the realm of ARM.
this article may give some clues. It is not obvious how to pass command line parameters in U-Boot, but maybe you could do what you need in /etc/sysctl.d/40-ipv6.conf. Or, you could build a custom kernel that turns off that capability.
I had been looking at that link and there is a useful link from that page with instructions on how to disable IPv6 in the kernel using kernel parameters in various boot loaders, just not uboot.

How can i disable ipv6 in OL7?

Hi everybody,
how can i disable ipv6 on my OL7 box?
In /etc/sysctl.d i have test it with the file: ipv6.conf:
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.<interface>.disable_ipv6 = 1
But this doesnt work.
Does anybody know how can i disable IPv6 in Oracle Linux 7?

What I would recommend is not to set implicit or redundant parameters:
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
There is no need to disable the "default" interface, since it is already included in the "all" statement.
I do not know, but there could be a possibility that such statements disable the network card in question, but in turn enable every other. In such case, your 2nd statement invalidates the first. Perhaps that was was part of the problem when using your other configuration.

How to disable/uncheck IPv6 in network adapter properties

Hi,
I need to programmtically disable/uncheck IPv6 during all Windows 7 deployments. Does anyone know where to find this in the registry or is there a Microsoft utility you can can use to achieve this?
This is what I'm talking about:
Open Network and Sharing Center
Click Change adapter settings in the upper left
Right click Local Area Connection
Choose Properties
On the networking tab, look for Internet Protocol Version 6 (TCP/IPv6)
I need to uncheck the checkbox on that line item
Thanks a lot for your help!
Rob

Microsoft has a command line program nvspbind (http://archive.msdn.microsoft.com/nvspbind), that can disable ipv6 on a specific interface. It seems to be identical to unchecking the
IPv6 box in adapter settings dialog. You can launch this program from a script or your program.
The command line arguments to disable IPv6 on a particular interface is:
nvspbind -d {GUID} ms_tcpip6
Rohit Harnikar MCSE (Exchange) 2003

HT4667 I need to disable IPv6 in Mavericks.

When I try to disable IPv6 in Network Systems Preferences under Advanced, TCP/IP the only options I am presented with are "Automatic", "Manually", and "Link-local only". Shouldn't there be an option "Off" also? Is there some other way to turn off IPv6 in Mavericks?

HI Carpil,
to continue the same discussion i found following things on my Mavericks,
$ networksetup -listallnetworkservices
An asterisk (*) denotes that a network service is disabled.
Ethernet Adaptor (en3)
Wi-Fi
Bluetooth PAN
Thunderbolt Bridge
Ethernet Adaptor (en1)
Bluetooth DUN
$ networksetup -setv6off "Thunderbolt Bridge"
$ networksetup -setv6off "Bluetooth DUN"
$ networksetup -setv6off "Ethernet Adaptor (en1)"
$ networksetup -setv6off "Ethernet Adaptor (en3)"
$ networksetup -setv6off "Bluetooth PAN"
$ networksetup -setv6off "WI-Fi"
$ networksetup -listallnetworkservices
An asterisk (*) denotes that a network service is disabled.
Ethernet Adaptor (en3)
Wi-Fi
Bluetooth PAN
Thunderbolt Bridge
Ethernet Adaptor (en1)
Bluetooth DUN
why it is not switching it off
and also i can see ipv6 address ::1 and fe80:1::1 being present
and also when i run $ netstat -i ipv6 -gps
Name Mtu   Network       Address            Ipkts Ierrs    Opkts Oerrs Coll
lo0   16384 <Link#1>                          1155     0     1155     0     0
lo0   16384 localhost   ::1                   1155     -     1155     -     -
lo0   16384 127           localhost           1155     -     1155     -     -
lo0   16384 nikhils-mac fe80:1::1             1155     -     1155     -     -
so I Was curious how to disable it, and why this command not executing after i give admin user password.

Issues After Disabling IPv6 on Your NIC on SBS 2008

If you uncheck the IPv6 protocol from your network interface card on your Windows SBS 2008 server you may see the following issues after a reboot:
Microsoft Exchange services fail to start
Server hangs at “Applying Computer Settings…” (can eventually logon after 30 – 60 minutes)
Network icons show as offline
Some or all of the following events
Application Log Events
Source: MSExchange ADAccess
Event ID: 2114
Task Category: Topology
Level: Error
Description:
Process MAD.EXE (PID=2088). Topology discovery failed, error 0x80040a02 (DSC_E_NO_SUITABLE_CDC). Look up the Lightweight Directory Access Protocol (LDAP) error code specified in the event description. To do this, use Microsoft Knowledge Base article 218185,
“Microsoft LDAP Error Codes.” Use the information in that article to learn more about the cause and resolution to this error. Use the Ping or PathPing command-line tools to test network connectivity to local domain controllers.
Source: MSExchange ADAccess
Event ID: 2601
Task Category: General
Level: Warning
Description:
Process MSEXCHANGEADTOPOLOGY (PID=952). When initializing a remote procedure call (RPC) to the Microsoft Exchange Active Directory Topology service, Exchange could not retrieve the SID for account <WKGUID=DC1301662F547445B9C490A52961F8FC,CN=Microsoft Exchange,CN=Services,CN=Configuration,…>
– Error code=80040a01.
The Microsoft Exchange Active Directory Topology service will continue starting with limited permissions.
Source: MSExchange ADAccess
Event ID: 2102
Task Category: Topology
Level: Error
Description:
Process MAD.EXE (PID=2088). All Domain Controller Servers in use are not responding: SBS.sbs2008.local
Source: MSExchange ADAccess
Event ID: 2105
Task Category: Topology
Level: Warning
Description:
Process MAD.EXE (PID=2088). Exchange Active Directory Provider failed to obtain DNS records for domain sbs2008.local. DNS Priority and Weight for the Domain Controllers in this domain will be set to the default values 0 (priority) and 100 (weight).
Source: MSExchange ADAccess
Event ID: 2114
Task Category: Topology
Level: Error
Description:
Process MSEXCHANGEADTOPOLOGYSERVICE.EXE (PID=952). Topology discovery failed, error 0x80040a02 (DSC_E_NO_SUITABLE_CDC). Look up the Lightweight Directory Access Protocol (LDAP) error code specified in the event description. To do this, use Microsoft Knowledge
Base article 218185, “Microsoft LDAP Error Codes.” Use the information in that article to learn more about the cause and resolution to this error. Use the Ping or PathPing command-line tools to test network connectivity to local domain controllers.
Source: MSExchangeFBPublish
Event ID: 8197
Task Category: General
Level: Error
Description:
Error initializing session for virtual machine SBS. The error number is 0x80040a01. Make sure Microsoft Exchange Store is running. Also, make sure that there is a valid public folder database on the Exchange server.
Source: MSExchangeTransportLogSearch
Event ID: 7005
Task Category: General
Level: Error
Description:
Microsoft Exchange couldn’t read the configuration from the Active Directory directory service because of error: Failed to load config due to exception: Microsoft.Exchange.Data.Directory.NoSuitableServerFoundException: The Exchange Topology service on server
localhost did not return a suitable domain controller.
System Log Events
Source: Service Control Manager
Event ID: 7044
Task Category: None
Level: Warning
Description:
The following service is taking more than 16 minutes to start and may have stopped responding: Microsoft Exchange System Attendant
Source: Service Control Manager
Event ID: 7022
Task Category: None
Level: Error
Description:
The Microsoft Exchange Transport service hung on starting.
Source: Service Control Manager
Event ID: 7024
Task Category: None
Level: Error
Description:
The Microsoft Exchange Information Store service terminated with service-specific error 0 (0×0).

Hi,
Based on your description, it seems to be the same as the following blog.
Issues
After Disabling IPv6 on Your NIC on SBS 2008
Did you mean that encounter the same issue? If so, there is a resolution in that blog, please check if can
help you solve the issue.
If any other issue exists or any update, please don’t hesitate to let me know and provide more details. It
will help me understand clearly.
Best regards,
Justin Gu

Disable IPv6 in Solaris 11

I work for a regulated bank in the UK and we do not use IPv6. IPv6 is disabled on all our switches.
Despite this control we have previously been told by external auditors that we must also disable IPv6 on our servers. No problem in Solaris 10 and lower.
Can anyone tell me a simple way to do this in Solaris 11? there doesn't seem to be a way to only plumb IPv4 interfaces.
I found an unreliable source on the internet telling me to hack the file /etc/ipadm/ipadm.conf but this means I need to reboot after plumbing interfaces, something that we haven't had to do for how many years? There must be a sensible way to do this...???

Do not under any circumstances unless directed by Oracle Support as part of fixing a bug modify the ipadm.conf file directly.
You can't disable IPv6 in Solaris 10 either, what you can do is not have any IPv6 addresses active on plumbed interfaces.
You can do the same in Solaris 11. However you can't disable the IPv6 loopback address on Solaris 11 if you have zones
and want to be able to do 'pkg update' using system repostitory from inside the zone.
To remove the IPv6 address on net0 do something like this:
# ipadm delete-addr net0/v6addr

How to Enable IPv6 Connection Permanently ?

How to Enable IPv6 Connection Permanently ?
I've searched Microsoft's websites for hours trying to enable IPv6 but no one seems to know.
I've enabled IPv6 from the registry but it disables after restart.
I think ESET Endpoint is disabling it.
I have got IPv6 enabled on the Router.
Please help.

Hi,
Microsoft already provide a hotfix to enable IPV6, you can access to the link below to download it for test.
https://support.microsoft.com/en-us/kb/929852
Note: I made a test in Windows 8.1, these hotfix also works fine.
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

How to disable IPV6 on localhost

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