f951871430
In dnsmasq 2.81 there is a regression (see [1] for details). Prior versions of dnsmasq would select a host record where: a) no address is present in the host record. b) an address matching address family of the client request is present in the host record. dnsmasq 2.81 will also use a host record where a only an address not matching the address family of the client request is present. The same issue is also backported to the dnsmasq-2.79-11.el8.x86_64 which is e.g. in RHEL 8.2 and Centos 8. dnsmasq version 2.81 also adds support for using tag's on host records. When a dhcpv6 request is received, dnsmasq automatically sets the tag 'dhcpv6'. This change adds a runtime check, testing for dnsmasq host entry tag support. And adds 'tag:dhcpv6' to all IPv6 host records when dnsmasq supports this. Adding the tag makes dnsmasq prefer the tagged host for dhcpv6 requests, i.e it's a workaround fix for the regression issue. [1] http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2020q2/014051.html Closes-Bug: #1876094 Change-Id: Ie654c84137914226bdc3e31e16219345c2efaac9 |
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