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On Tuesday 30 Dec 2014 03:27:34 Zesen Qian wrote: |
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> Hello list, |
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> Sorry for hijacking Rich's thread, resend here. |
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> I want to disable IPv6 on an certain interface, a simple google |
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> tell me to add one line to /etc/sysctl.d/local.conf |
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> net.ipv6.conf.enp4s0.disable_ipv6=1 |
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> Simple enough, but the problem I have is that both ipv6 and the |
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> dirver of the network card(tg3) is loaded by modules. They 're not |
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> loaded when the service sysctl is started, so there's no entry |
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> named "net.ipv6.conf.enp4s0", which make sysctl not working. |
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> So my question is that, is there any way to disable IPv6 on |
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> specific interface, as early as I can? I want to make it early |
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> because I don't want to receive any RA to mess up my route table. |
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> I guess just adding sysctl to preup() in /etc/conf.d/net should do |
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> the trick, but may I make it earlier? |
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> Any comment is appreciated. |
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Unless the kernel knows of the enp4s0 interface and therefore lists it under |
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sysctl, I can't see how it can be disabled. You could try disabling IPv6 |
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altogether in the kernel, but this may not be what you want to achieve. |
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Alternatively, have a look with modinfo in the module options in the unlikely |
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chance that the module has some option which disables IPv6 functionality. |
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-- |
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Regards, |
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Mick |