Hi,
I am trying to use dnsmasq to assign both IPv4 and IPv6 address in
dual-stack environment. The dnsmasq was launched with several additional
options:
root 19991 19990 0 11:09 ?00:00:00 dnsmasq --no-hosts
--no-resolv --strict-order --bind-interfaces --interface=ns-7f72b3ad-1a
--exc
Hi,
I am using DNSMasq to assign IPv6 address to client machine (Centos 6.4).
Based on sniffer trace, I can see DHCP Solicit msg from client addressed to
ff02::1:2 at UDP port 547:
11:18:25.140542 IP6 (hlim 1, next-header UDP (17) payload length: 60)
fe80::f816:3eff:fe95:2389.546 > ff02::1:2.547:
Hi, experts:
I tried to leverage opts file to modify the recursive dns server IP conveyed in
RA. The entry in the opts file is shown below:
tag:tag1,option6:dns-server,[2001:4860:4860::]
I tcpdumped the outgoing RA message, but the dns server IP is still set to the
IPv6 address dnsmasq bou
Hi, guys:
I tried both “slaac” mode and “ra-only” modes with dnsmasq version 2.66. One
thing I noticed was, both modes set the same bit value in the RA:
M-bit = 0, O-bit = 0, A-bit = 1, L-bit = 1.
I am wondering what’s the difference between these two modes then? Would you
please shed some lig
dhcpv6…..Same as ra-only. In
other words, how slaac/ra-only set MOAL bits depends on dhcp-range…..Is my
understanding correct?
Shixiong
On Dec 17, 2013, at 11:55 AM, Simon Kelley wrote:
> On 17/12/13 12:29, Shixiong Shang wrote:
>> Hi, guys:
>>
>> I tried both “slaac” mod
PM, Simon Kelley wrote:
> On 17/12/13 12:30, Shixiong Shang wrote:
>> Hi, experts:
>>
>> I tried to leverage opts file to modify the recursive dns server IP conveyed
>> in RA. The entry in the opts file is shown below:
>>
>> tag:tag1,option6:dns-server,[2
Hi, expert:
I am using dnsmasq as DHCPv6 server and I created host file for my IPv6 DHCP
range. The first field is DUID calculated by MAC, followed by hostname, and
then IPv6 address.
00:03:00:06:fa:16:3e:03:63:36,host-2001-db8-3--1.openstacklocal,2001:db8:3::1
00:03:00:06:fa:16:3e:95:5f:6a,hos
Hi, expert:
I am using dnsmasq as DHCPv6 server. By default, dnsmasq is bound to port 53. I
used --port option to bind it to UDP/547, since this is what my DHCPv6 client
sends the query to. However, the dnsmasq never saw the DHCPv6 packets coming in
afterwards. Based on tcpdump, I could see DHC
:::*
2533/dnsmasq
udp6 0 0 fe80::f816:3eff:fe5:547 :::*
2533/dnsmasq
Shixiong
On Dec 17, 2013, at 1:15 PM, Shixiong Shang
wrote:
> Hi, expert:
>
> I am using dnsmasq as DHCPv6 server. By default, dnsmasq is
mon Kelley wrote:
>
>> On 17/12/13 17:34, Shixiong Shang wrote:
>> Hi, Simon:
>>
>> Thanks a lot for your quick clarification! Just want to make sure I
>> clearly understand what you mean….if the dhcp-range contains a range
>> of IPv6 address, then slaac shoul
:08 PM, Simon Kelley wrote:
> On 17/12/13 17:34, Shixiong Shang wrote:
>> Hi, Simon:
>>
>> Thanks a lot for your quick clarification! Just want to make sure I
>> clearly understand what you mean….if the dhcp-range contains a range
>> of IPv6 address, then slaac
Got it! Now it works like a charm!
Thanks, Simon! Thanks, Bertrand!!
On Dec 17, 2013, at 4:18 PM, Simon Kelley wrote:
> On 17/12/13 18:00, Shixiong Shang wrote:
>> Hi, expert:
>>
>> I am using dnsmasq as DHCPv6 server and I created host file for my IPv6 DHCP
>>
I just found a workaround….If I replaced “slaac” mode with “static” mode, then
it just worked fine…But I don’t understand why it worked. :(
On Dec 18, 2013, at 1:15 PM, Shixiong Shang
wrote:
> Hi, Simon:
>
> I put the range inside —dhcp-range filed as shown below to enable DHCPv
I am using version 2.66.
> On Dec 19, 2013, at 5:31 AM, Simon Kelley wrote:
>
>> On 19/12/13 04:02, Shixiong Shang wrote:
>> I just found a workaround….If I replaced “slaac” mode with “static” mode,
>> then it just worked fine…But I don’t understand why it worked.
Hi, expert:
I am using the dnsmasq in DHCPv6 Stateless mode. Based on the sniffer trace, I
saw my DHCPv6 client solicit optional information, but dnsmasq replied with
nothing. The log showed “no address available”….Anything I did wrong?
In addition, I saw in the man page that there is another w
Tried and verified it! Working pretty well now! Thanks, Simon!
Shixiong
On Dec 19, 2013, at 10:48 AM, Simon Kelley wrote:
> On 18/12/13 15:21, Shixiong Shang wrote:
>> Hi, Simon:
>>
>> This is very helpful! Thanks a lot for your confirmation!
>>
>> A quick
Hi, experts:
I have an opts_file which contains the entries for two tags, tag0 and tag1. Two
dnsmasq instances are sharing the same opts_file. In this case, is it possible
to let the first dnsmasq only read the opts entires beginning with tag0, and
let the 2nd dnsmasq instance only read the opt
Hi, experts:
Is it possible that dnsmasq can send out RA with either A=0, MO=1 (i.e. for
DHCPv6 Stateful), or AO=1, M=0 (i.e. for DHCPv6 Stateless) WITHOUT dhcp-range?
What I am trying to achieve here is using dnsmasq to send out RA to trigger
DHCPv6 Stateful or DHCPv6 Stateless mode without ac
ote:
>> Le 17/01/2014 05:30, Shixiong Shang a écrit :
>>> Hi, experts:
>>>
>>> Is it possible that dnsmasq can send out RA with either A=0, MO=1
>>> (i.e. for DHCPv6 Stateful), or AO=1, M=0 (i.e. for DHCPv6 Stateless)
>>> WITHOUT dhcp-range? Wh
Just think out loud, can I use those modes with “—dhcp-range” so RA will be
sent, and then use “--no-dhcp-interface=“ to disable DHCPv6 on the
corresponding interface?
:D
Shixiong
On Jan 17, 2014, at 9:21 AM, Shixiong Shang
wrote:
> Hi, Simon and Albert:
>
> Thank both of you
shutdown the DHCPv6 port, so dnsmasq
won’t listen to DHCPv6 message? Or change it from different port?
Thanks again!
Shixiong
On Jan 17, 2014, at 9:32 AM, Simon Kelley wrote:
> On 17/01/14 14:21, Shixiong Shang wrote:
>> Hi, Simon and Albert:
>>
>> Thank both of y
Hi, Simon:
Is it possible that we can launch dnsmasq as DHCPv6 Stateless server WITHOUT
sending RA? I tried the following configuration, but I still saw RA initiated
from dnsmasq even “—enable-ra” was omitted.
nobody 16448 1 0 23:57 ?00:00:00 dnsmasq --no-hosts --no-resolv
--str
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