dnsmasq: allow updates to hostname in ipv6 leases     When a new lease is acquired by a new node this triggers an IP address     allocation but no hostname is associated with the lease.  A new lease update is     sent to sysinv and then a some later time sysinv will persist that record in to     the dnsmasq.host file.  When the dnsmasq.host file is updated dnsmasq is sent     the HUP signal to get it to re-read its config file.  At that time dnsmasq     attempts to look at the dnsmasq.conf file to find host records that may have     additional information that could be used to update existing leases.  That is,     if it finds a lease that is missing a hostname it will update it based on the     dnsmasq.hosts record.     This mechanism works fine for IPv4 but it is not supported for IPv6. This     update adds the necessary support to dnsmasq to allow the aforementioned     mechanism to work with IPv6.     This change in dnsmasq has also inadvertantly fixed an issue with an IPv6 DHCP     host record hostname being used to update an IPv4 lease.  This was causing     hostname lookups to return both an IPOv4 (pxe) and IPv6 (mgmt) address for the     same node. On 18-10-05 07:22 PM, Saul Wold wrote:

Scott, Brent:

You have a patch against dnsmasq that adds some code for handling IPv6 addrs in lease_update_from_configs().

Can you provide any more background, was this reported upstream? What exactly is this fixing?

stx-integ/base/dnsmasq/centos/patches/dnsmasq-update-ipv6-leases-from-config.patch

Thanks    Sau!