536   if (ip6config_.get()) {  in DestroyIPConfig()
538     ip6config_ = nullptr;  in DestroyIPConfig()
557     if (ip6config_) {  in OnIPv6AddressChanged()
558       ip6config_ = nullptr;  in OnIPv6AddressChanged()
571   if (!ip6config_) {  in OnIPv6AddressChanged()
572     ip6config_ = new IPConfig(control_interface_, link_name_);  in OnIPv6AddressChanged()
573   } else if (properties.address == ip6config_->properties().address &&  in OnIPv6AddressChanged()
575                  ip6config_->properties().subnet_prefix) {  in OnIPv6AddressChanged()
585   properties.dns_servers = ip6config_->properties().dns_servers;  in OnIPv6AddressChanged()
587   ip6config_->set_properties(properties);  in OnIPv6AddressChanged()
616   if (!ip6config_) {  in OnIPv6DnsServerAddressesChanged()
617     ip6config_ = new IPConfig(control_interface_, link_name_);  in OnIPv6DnsServerAddressesChanged()
623     ip6config_->UpdateLeaseExpirationTime(lifetime);  in OnIPv6DnsServerAddressesChanged()
625     ip6config_->ResetLeaseExpirationTime();  in OnIPv6DnsServerAddressesChanged()
631   if (ip6config_->properties().dns_servers == addresses_str) {  in OnIPv6DnsServerAddressesChanged()
637   ip6config_->UpdateDNSServers(addresses_str);  in OnIPv6DnsServerAddressesChanged()
655   if (!ip6config_) {  in IPv6DNSServerExpired()
658   ip6config_->UpdateDNSServers(vector<string>());  in IPv6DNSServerExpired()
703   if (ip6config_) {  in RenewDHCPLease()
708     ip6config_ = nullptr;  in RenewDHCPLease()
895   if (IPConfigCompleted(ip6config_) &&  in OnIPv6ConfigUpdated()
897     SetupConnection(ip6config_);  in OnIPv6ConfigUpdated()
912   bool ipv6_connectivity = IPConfigCompleted(ip6config_);  in SetupConnection()
1054   if (IPConfigCompleted(ip6config_)) {  in OnIPConfigFailed()
1057       SetupConnection(ip6config_);  in OnIPConfigFailed()
1738   if (ip6config_) {  in AvailableIPConfigs()
1739     ipconfigs.push_back(ip6config_->GetRpcIdentifier());  in AvailableIPConfigs()
1890                   << (ip6config_ ? "is set." : "is not set.");  in SetEnabledUnchecked()