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According to the dnsmasq manpage, the netmask for IPv4 address ranges will be auto-deteremined from the interface dnsmasq is listening on, but it can't do this for IPv6 for some reason - it instead assumes a network prefix of 64 for all IPv6 address ranges. If this is incorrect, dnsmasq will refuse to give out an address to clients, instead logging this message: dnsmasq-dhcp[2380]: no address range available for DHCPv6 request via virbr0 The solution is for libvirt to add ",$prefix" to all IPv6 dhcp-range arguments when building the dnsmasq.conf file. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1033739
18 lines
565 B
Plaintext
18 lines
565 B
Plaintext
##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
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##OVERWRITTEN AND LOST. Changes to this configuration should be made using:
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## virsh net-edit default
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## or other application using the libvirt API.
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##
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## dnsmasq conf file created by libvirt
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strict-order
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domain=mynet
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expand-hosts
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except-interface=lo
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bind-dynamic
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interface=virbr0
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dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64
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dhcp-lease-max=240
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dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
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addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
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enable-ra
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