Re: Testing -4 and -6

[Robin H. Johnson via devel]

On Wed, Sep 20, 2023 at 08:02:51PM -0700, Hal Murray via devel wrote:
> 
> Does anybody have a recipe (or pointer to one) for how to get a system 
> running 
> without any IPv6?
net.ipv6.conf.all.disable_ipv6=1

> I want something such that isc_net_probeipv6_bool() will return false.
> 
> Do we have to build our own kernel with some config variable turned off?
> Or will just not configuring any IPv6 interfaces be good enough?
> 
> Same for IPv4.
Not possible today to my knowledge to get a kernel with strictly
v6-only at the kernel layer. I think you might be able to delete all v4
addresses, but that isn't quite the same thing.

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Robin Hugh Johnson
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Testing -4 and -6

[Hal Murray via devel]

Does anybody have a recipe (or pointer to one) for how to get a system running 
without any IPv6?

I want something such that isc_net_probeipv6_bool() will return false.

Do we have to build our own kernel with some config variable turned off?
Or will just not configuring any IPv6 interfaces be good enough?

Same for IPv4.

The code for isc_net_probeipv6_bool is slightly different from that for 
isc_net_probeipv4_bool.  I didn't go down that rathole.  It looks like 
somebody may be assuming that some or all of IPv4 always exists.


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