Re: [RFC] Change default ipv6 network from fec0/10 (site local) to fe80/10 (link local)
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Hi Doug,
Cc'ing more developers.
On 1/27/21 8:13 PM, Doug Evans wrote:
Hi.
This is just an information gathering question. I don't know enough to
formally propose the change.
I happened to notice QEMU's default for the ipv6 network is fec0::/10
which is deprecated (RFC3879).
I think(!) an obvious replacement is fe80::/10, link local.
Has anyone thought about this issue or know of reasons why we shouldn't
make this change?
I'm a bit worried this could break various scripts and firewall rules
where this is the expected default range...
Thursday, 28 January
Thu, 28 Jan
5:55 a.m.
New subject: [RFC] Change default ipv6 network from fec0/10 (site local) to fe80/10 (link local)
Hello,
Philippe Mathieu-Daudé, le mer. 27 janv. 2021 22:46:13 +0100, a ecrit:
On 1/27/21 8:13 PM, Doug Evans wrote:
> I happened to notice QEMU's default for the ipv6 network is fec0::/10
> which is deprecated (RFC3879).
> I think(!) an obvious replacement is fe80::/10, link local.
fe80::/10 is really a different thing, I don't think we want to use it.
We can use some prefix in fc00::/7, such as fd00::/8.
It "just" needs checking with various guest OS, to check that it doesn't
break the default behavior.
Samuel
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Philippe Mathieu-Daudé -
Samuel Thibault