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.
Similar Messages
-
Disabling IPv6 on 2008R2 Domain Controllers... Best Practice?
At the end of last year I had a call with Microsoft Support in which I spoke with a member of the Directory Services team regarding an issue. The issue was resolved with no further problems, but while conversing with the Technical Support Engineer
I queried him on another issue regarding a second copy of our DNS zone in Active Directory. He looked at it (remoted in via RDP) then looked at my NIC properties and stated that the reason it happened is because we are running IPv6 on our DCs.
I told him we do that on all our servers. (leave IPv6 enabled.) He then stated that we should not do that, expanding by saying that "Microsoft is in the process of rewriting documentation as IPv6 is no longer supported on Domain Controllers."
Needless to say I could not believe this. I told him how Exchange on an SBS server cannot have IPv6 disabled as the server will stop booting, but he was very adamant about it; he even put me on hold for 10 minutes then came back saying he confirmed
that this is the case and spoke with the "Documentation Team" and the new Best Practices would be released within the next month. In the meantime he recommended I disable IPv6 on all my DCs. (I work in Consulting so that's a lot of DCs at various different
business entities.)
I didn't believe him then, and I don't believe him now. Reviewing the FAQ linked through http://support.microsoft.com/kb/929852 Says that Microsoft does not recommend disabling IPv6. Of course no documentation ever came out, nor have I
found anything to agree with his statements. (we solved the duplicate partition issue ourselves.)
I just wanted to post here and see if anyone else has heard of this, maybe I'm the one not up and up on my info. Has or does Microsoft plan on reversing course on the new IPv6 technology that 2008 and up are built on? I would think that quite
preposterous!
Thanks,
Christopher Long
Science is a way of thinking much more than it is a body of knowledge. -- Carl SaganThere are cases where you DO WANT to disable IPv6 on a domain controller.
Example: you have an IPV4 network and do not have IPV6 deployed. In this case if you are not using IPv6 but leave it enabled than Windows will assign itself an IPv6 at random via the APIPA process. That IP address can and does change when you reboot the
server.... So I bet you see the problem here.
If you build a domain controller with IPv6 enabled - it will register it's IPV6 address in DNS as offering AD services. Then when you reboot that domain controller and that address changes - BOOM. AD comes crashing down. AD relies heavily on DNS. Windows
thinks it's smarter than you and registers it's IPv6 address obtained via APIPA in DNS. Now that's a problem. Particularly because Win Server 2008+ prefer IPV6 over IPV4 networks. So communication can blow up even if a valid IPv4 network is available.
So yes - there are instances where you do want to - in fact need to - disable IPv6 on domain controllers. Microsoft's documentation does not reflect this but it should. At a minimum if they want you to leave it on they should at least remind you to set a
static IPv6 address if you're running an IPv4 network.
(ask me how I know all this over a beer some time)
I opted to just disable it. Despite MS's documentation warning of the contrary - I've seen no adverse impacts. Exchange, Sharepoint, AD, etc. all humm along fine. -
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,
SJrobughblah wrote:
see https://answers.syr.edu/display/network/Disable+IPv6+on+Mac+Lion+and+Mountain+Li on
This solved my problem. Thanks -
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
TechNetSubscriber Support
If you are TechNetSubscription user and have any feedback on our support quality, please
send your feedback here
Best regards,
Frank Shen
Please read the question before marking things as answers. -
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. -
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 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,
- alanI need to temporary disable ipv6 address of lo0 (which by the way is not 127.0.0.1 but ::1) for testing development purpose..
-
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..
-
Disable IPv6 post EPM configuration
Hello Gurus,
Consider the following scenario:
1. Oracle EPM 11.1.2.3 is installed and configured on the server when IPv6 was enabled.
2. When I check the logs, there are errors like the one shown below for all the Hyperion products in the sysout logs.
<Feb 26, 2015 4:52:14 PM IST> <Warning> <JMX> <BEA-149509> <Unable to establish JMX Connectivity with the Adminstration Server AdminServer at service:jmx:t3://[2001:0:9d38:90d7:1498:37fa:53ef:9b94]:7001/jndi/weblogic.management.mbeanservers.domainruntime.
java.io.IOException
at weblogic.management.remote.common.ClientProviderBase.makeConnection(ClientProviderBase.java:196)
at weblogic.management.remote.common.ClientProviderBase.newJMXConnector(ClientProviderBase.java:84)
at javax.management.remote.JMXConnectorFactory.newJMXConnector(JMXConnectorFactory.java:338)
at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:247)
at weblogic.management.mbeanservers.runtime.internal.RegisterWithDomainRuntimeService.getDomainMBeanServerConnection(RegisterWithDomainRuntimeService.java:222)
Truncated. see log file for complete stacktrace
Caused By: javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3://[2001:0:9d38:90d7:1498:37fa:53ef:9b94]:7001: Destination unreachable; nested exception is:
java.net.ConnectException: Connection timed out: connect; No available router to destination]
at weblogic.jndi.internal.ExceptionTranslator.toNamingException(ExceptionTranslator.java:40)
at weblogic.jndi.WLInitialContextFactoryDelegate.toNamingException(WLInitialContextFactoryDelegate.java:792)
at weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:368)
at weblogic.jndi.Environment.getContext(Environment.java:315)
at weblogic.jndi.Environment.getContext(Environment.java:285)
Truncated. see log file for complete stacktrace
which I presume is because IPv6 is enabled on the server.
When I check the status of the server in Oracle Weblogic Administration Console, I see the status as Shutdown, however the service is up and running and I am able to work on it.
Doubt:
Can I disable IPv6 on the servers, such that it doesn't disturb the current configuration?
Will there be any extra need to configure EPM system after disabling the IPv6?If you want to disable IPv6 then you can but make sure you bring down Hyperion, completely remove IPv6 and then reboot.
From the log you posted it looks it is trying to bind to a tunnel adaptor or 6to4 adaptor, if you run an ipconfig /all you should see what it is binding to.
If you would like to understand ipv4/ipv4 supported combinations have a look at the "IPv6 Certification" tab in the support matrix - Supported Platforms Matrices - Oracle Enterprise Performance Management System
From
Cheers
John
http://john-goodwin.blogspot.com/ -
Anyone done SBS 2008 to Exchange 2013 migration - disable IPv6 on SBS?
IPv6 enabled on ours without any problems. THanks for the links Anil, had not heard of those problems before
Well, considering over the scenario you have mentioned, I would like to refer you on this informative article that covers few parts of causes when disabling IPV6 on Exchange 2013 Server installation : http://mike-graham.co.uk/blog/2013/08/12/disabling-ipv6-on-exchange-2013-servers-causes-problems/Here is a well documented technet resource that also provides step-wise instructions when proceeding to migrate from Exchange 2007 to 2013 by checking all the required prerequisites : http://blogs.technet.com/b/meamcs/archive/2013/07/25/part-1-step-by-step-exchange-2007-to-2013-migra...Moreover, while need to migrate users mailboxes from Exchange 2007 to 2013, you may also consider on LepideMigrator for Exchange tool that provides a hassle-free environment to get this job done without having downtime or any further interruption.
-
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. -
We have a vulnerability scanner that we use and it has picked up that our Voice GW has a "Cisco IPv6 Crafted Packet Vulnerability"
I entered the commands "no ipv6 unicast-routing" and "no ipv6 cef" the next scan is in a weeks time, but would these have done the trick?
Thank you
BilalQualys vulnerability scanner, the version of ios is vg224-i6k9s-mz.124-24.T5.bin
The report states:
IPv6 is the "Internet Protocol Version 6", designed by the Internet Engineering Task Force (IETF) to replace Internet Protocol Version 4 (IPv4). A vulnerability exists in the processing of IPv6 packets. Crafted packets from the local segment received on logical interfaces (that is, tunnels including 6to4 tunnels) as well as physical interfaces can trigger this vulnerability. Crafted packets cannot traverse a 6to4 tunnel and attack a box across the tunnel.
The crafted packet must be sent from a local network segment to trigger the attack. This vulnerability cannot be exploited one or more hops from the IOS device.
NOTE: This check requires that the "Clear Text Password" check box is enabled in your Authentication Preferences.
IMPACT:
Successful exploitation of the vulnerability on Cisco IOS may result in a reload of the device or execution of arbitrary code. Repeated exploitation could result in a sustained denial of service attack or execution of arbitrary code on Cisco IOS devices. Successful exploitation of the vulnerability on Cisco IOS-XR may result in a restart of the IPv6 neighbor discovery process. A restart of this process will only affect IPv6 traffic passing through the system. All other processes and traffic will be unaffected. Repeated exploitation could result in a sustained denial of service attack on IPv6 traffic.
SOLUTION:
Cisco has made free software available to address this vulnerability for all affected customers. Workaround:
In networks where IPv6 is not needed but enabled, disabling IPv6 processing on an IOS device will eliminate exposure to this vulnerability. On a router which is configured for IPv6, this must be done by issuing the command "no ipv6 enable" and "no ipv6 address" on each interface.
VG224-1(config)#no ipv6 enable
^
% Invalid input detected at '^' marker.
VG224-1(config)#int fa0/0
VG224-1(config-if)#no ipv6 enable
VG224-1(config-if)#int fa0/1
VG224-1(config-if)#no ipv6 enable
What does the note in bold mean? There's no check box in cli :-/
Thank you -
How can I delete my voice mail messages on my Samsung Galaxy Centura cause i need to send it into warranty replacement, and they say I need to disable my phone. The recording just says its full and won't let me listen to any messages. When I call my voicemail it asks me to enter my password, but the keyboard won't come up.
Is there a way I can call from another phone and get my messages and erase them, before sending the phone off to warranty.I don't want my personal info tampered with.If you have a Samsung phone why are you asking in an Apple iPhone forum?
-
Help! I need to disable my phone number from my apple id
Read here:
http://support.apple.com/kb/ts5185 -
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
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