Hi all,
I know I'm a bit late to ask this, but did the CentOS 7 installer kernel (here now https://vault.centos.org/7.9.2009/os/x86_64/images/pxeboot/) ever support setting an IPv4 AND an IPv6 address on the same interface?
I've done some testing in a VM where setting EITHER IPv4 OR IPv6 works, but not both on the same interface, but is it possible to have dual stack settings applied to one interface via the kernel parameters? Assume that I have no ability to have a kickstart file locally, otherwise this could be worked around :/
Thanks
On Thu, 1 Aug 2024 at 16:44, fetch@posteo.nl wrote:
Hi,
I know I'm a bit late to ask this, but did the CentOS 7 installer kernel
(here now https://vault.centos.org/7.9.2009/os/x86_64/images/pxeboot/) ever support setting an IPv4 AND an IPv6 address on the same interface?
I've done some testing in a VM where setting EITHER IPv4 OR IPv6 works, but not both on the same interface, but is it possible to have dual stack settings applied to one interface via the kernel parameters? Assume that I have no ability to have a kickstart file locally, otherwise this could be worked around :/
You you can provide both IPv4 and IPv6 addresses. You need to provide the "ip=" option twice, once for each address you want to configure.
Regards, Anand
Probably documented in the RHEL 7 Install docs or advanced/kickstart docs.
Thank you, Terry Bowling Principal Product Manager - Red Hat Insights - image builder and RHEL management Red Hat, Inc.
On Thu, Aug 1, 2024 at 11:12 AM Anand Buddhdev anandb@ripe.net wrote:
On Thu, 1 Aug 2024 at 16:44, fetch@posteo.nl wrote:
Hi,
I know I'm a bit late to ask this, but did the CentOS 7 installer kernel
(here now https://vault.centos.org/7.9.2009/os/x86_64/images/pxeboot/) ever support setting an IPv4 AND an IPv6 address on the same interface?
I've done some testing in a VM where setting EITHER IPv4 OR IPv6 works, but not both on the same interface, but is it possible to have dual stack settings applied to one interface via the kernel parameters? Assume that
I
have no ability to have a kickstart file locally, otherwise this could be worked around :/
You you can provide both IPv4 and IPv6 addresses. You need to provide the "ip=" option twice, once for each address you want to configure.
Regards, Anand _______________________________________________ Discuss mailing list -- discuss@lists.centos.org To unsubscribe send an email to discuss-leave@lists.centos.org
Thanks all!
While the docs do say you can specify multiple ip= parameters, booting the installer with one ip= parameter for IPv4 and one ip= parameter for IPv6 on the *same* interface (also adding the required bootdev/rd.neednet/etc parameteres described in the docs as well as without them) does not seem to work with these installer images:
Fedora <32 EL7-9
It *does* work with Fedora 32 through 40.
For Fedora 32 through 40 I can just supply the two ip= parameters (one for v4 and one for v6) and the ifname parameter, and that works (without rd.neednet/bootdev/etc).
Is there some parameter I'm missing? I can supply the kexec line, for example, but it's difficult to give more debugging information than that as the console halts/does not print anything when booting into these kernels with the two ip= parameters and just hangs.
-
Anand Buddhdev -
fetch＠posteo.nl -
Terry Bowling