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incusd/network/bridge: Don't require dnsmasq on link-local IPv6 #2377

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Merged
merged 1 commit into from
Aug 12, 2025
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incusd/network/bridge: Don't require dnsmasq on link-local IPv6 #2377

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10 changes: 9 additions & 1 deletion internal/server/network/driver_bridge.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3430,7 +3430,15 @@ func (n *bridge) UsesDNSMasq() bool {

// Start dnsmassq if IPv6 is used (needed for SLAAC or DHCPv6).
if !util.IsNoneOrEmpty(n.config["ipv6.address"]) {
return true
ipAddress, _, err := net.ParseCIDR(n.config["ipv6.address"])
if err != nil {
return true
}

// Only require dnsmasq if using a global address.
if !ipAddress.IsLinkLocalUnicast() {
return true
}
}

// Start dnsmasq if IPv4 DHCP is used.
Expand Down