net: fix ipv6_dhcpv6_stateful configuration for rhel#4329
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When network type is ipv6_dhcpv6-stateful, cloud-init seems to enable dhcp for both ipv4 and ipv6. Network manager prefers dhcp over ipv4 and hence dhcp6 is not used to obtain the IP address. This is incorrect. For ipv6_dhcpv6-stateful networks, we should set: ipv4.method = disabled // disables all ipv4 dhcp ipv6.method = dhcp ipv6.may-fail = no // dhcp6 must succeed. For ifcfg files (sysconfig renderer), the corresponding changes should be: BOOTPROTO = none // instead of dhcp so that dhcp4 is disabled. IPV6_FAILURE_FATAL = yes // so that dhcp6 should succeed. This patch fixes this. This patch has been tested by Red Hat QE and it seems to fix the above issue. RHBZ: 2227767 fixes: f550c87 ("Adding BOOTPROTO = dhcp to render sysconfig dhcp6 stateful on RHEL (canonical#685)") Signed-off-by: Ani Sinha <anisinha@redhat.com>
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Seems we have not considered a scenario where both ipv6-stateful and ipv4 dhcp is enabled. Will need to fix it. Closing. |
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When network type is ipv6_dhcpv6-stateful, cloud-init seems to enable dhcp for both ipv4 and ipv6. Network manager prefers dhcp over ipv4 and hence dhcp6 is not used to obtain the IP address. This is incorrect. For ipv6_dhcpv6-stateful networks, we should set:
For ifcfg files (sysconfig renderer), the corresponding changes should be:
This patch fixes this. This patch has been tested by Red Hat QE and it seems to fix the above issue.
RHBZ: 2227767
fixes: f550c87 ("Adding BOOTPROTO = dhcp to render sysconfig dhcp6 stateful on RHEL (#685)")