[Dnsmasq-discuss] strange warn message

[Simon Kelley]

On 28/08/12 15:27, e9hack wrote:
> Am 28.08.2012 15:21, schrieb Simon Kelley:
>> On 18/08/12 07:26, e9hack wrote:
>>> Hi,
>>>
>>> I've a configuration where the host file contains two ipv6 entries for a host (self
>>> created ipv6 from ULA prefix and a DHCP ipv6):
>>>
>>> 192.168.25:2 vbox
>>> fdaa:aaaa:aaaa:aaaa:bbbb:bbbb:bbbb:bbbb vbox
>>> fec0:0:0:ffff::ffff:2 vbox
>>> ...
>>>
>>> The configuration file contains the DHCPv6 entry also:
>>>
>>> local=/lan/
>>> domain=lan
>>> dhcp-range=192.168.25.100,192.168.25.150,48h
>>> dhcp-host=aa:aa:aa:bb:bb:bb,vbox,192.168.25.2
>>> dhcp-range=fec0:0:0:ffff::ffff:100,fec0:0:0:ffff::ffff:ffff,48h
>>> dhcp-host=id:cc:cc:cc:cc:cc:cc:cc:cc:cc:cc:cc:cc:cc:cc,vbox,[fec0:0:0:ffff::ffff:2]
>>> ...
>>>
>>> All the time, where a PC ask for a lease, I get the following entry in the log:
>>>
>>> Aug 18 08:05:27 WLAN daemon.info dnsmasq-dhcp[27370]: DHCPDISCOVER(br0) dd:dd:dd:dd:dd:dd
>>> Aug 18 08:05:27 WLAN daemon.info dnsmasq-dhcp[27370]: DHCPOFFER(br0) 192.168.25.6
>>> dd:dd:dd:dd:dd:dd
>>> Aug 18 08:05:27 WLAN daemon.info dnsmasq-dhcp[27370]: DHCPREQUEST(br0) 192.168.25.6
>>> dd:dd:dd:dd:dd:dd
>>> Aug 18 08:05:27 WLAN daemon.info dnsmasq-dhcp[27370]: DHCPACK(br0) 192.168.25.6
>>> dd:dd:dd:dd:dd:dd vdr
>>> Aug 18 08:05:27 WLAN daemon.warn dnsmasq-dhcp[27370]: not giving name vbox.lan to the DHCP
>>> lease of fec0::ffff:0:0:ffff:2 because the name exists in /var/hosts with address
>>> fdaa:aaaa:aaaa:aaaa:bbbb:bbbb:bbbb:bbbb
>>> Aug 18 08:05:27 WLAN daemon.warn dnsmasq-dhcp[27370]: not giving name vbox to the DHCP
>>> lease of fec0::ffff:0:0:ffff:2 because the name exists in /var/hosts with address
>>> fdaa:aaaa:aaaa:aaaa:bbbb:bbbb:bbbb:bbbb
>>>
>>> dnsmasq complains about all hosts with more than one ipv6 address in the host file. The
>>> error message is shown for all DHCP queries from different PC's. dnsmasq gives the PC vbox
>>> the correct ipv6 address over DHCP.
>>>
>>> C:\Users\zz>nslookup vbox
>>> Server:  WLAN.lan
>>> Address:  192.168.25.1
>>>
>>> Name:    vbox.lan
>>> Addresses:  fdaa:aaaa:aaaa:aaaa:bbbb:bbbb:bbbb:bbbb
>>>           fec0::ffff:0:0:ffff:2
>>>           192.168.25.2
>>>
>>> Regards,
>>> Hartmut
>>>
>>
>> Ok, the obvious question: what's in the file /var/hosts?
>>
>> Simon.
> 
> The vbox related stuff is described above. The whole file is:
> 
> Web-Shell>  cat /var/hosts
> 127.0.0.1 localhost
> 192.168.25.1 WLAN
> 192.168.25.2 vbox
> 192.168.25.6 vdr
> 192.168.25.10 netbook
> 192.168.25.12 netbook-openvpn
> 192.168.25.18 defy
> 
> # The following lines are desirable for IPv6 capable hosts
> ::1     localhost ip6-localhost ip6-loopback
> fe00::0 ip6-localnet
> ff00::0 ip6-mcastprefix
> ff02::1 ip6-allnodes
> ff02::2 ip6-allrouters
> ff02::3 ip6-allhosts
> fdaa:aaaa:aaaa:aaaa:eeee:eeee:eeee:eeee WLAN
> fdaa:aaaa:aaaa:aaaa:bbbb:bbbb:bbbb:bbbb vbox
> fdaa:aaaa:aaaa:aaaa:dddd:dddd:dddd:dddd vdr
> fec0:0:0:ffff::1 WLAN
> fec0:0:0:ffff::2 WLAN
> fec0:0:0:ffff::ffff:2 vbox
> 
> WLAN is the router on which dnsmasq is running. I see such a message for vbox, but I don't
> see a message for WLAN. The address for WLAN are set dircetly by 'ip addr add ...'.
> 

OK, 2.64test2 should fix this: it won't complain about mismatched
name/address pairs in the hosts file if there is also a correct
name/address pair.

Simon.