Re: [Dnsmasq-discuss] Dnsmasq-discuss Digest, Vol 138, Issue 13
Hi, thank you for the insight. Actually, I want this implementation on my router(which is running mipsel-linux), can't just simply install on it. Therefore, I have to run the binary there but I'm not getting the MAC address of the connected clients when I add the add-mac option in the conf file. From: Dnsmasq-discuss <dnsmasq-discuss-boun...@lists.thekelleys.org.uk> on behalf of dnsmasq-discuss-requ...@lists.thekelleys.org.uk <dnsmasq-discuss-requ...@lists.thekelleys.org.uk> Sent: Tuesday, November 22, 2016 12:14 AM To: dnsmasq-discuss@lists.thekelleys.org.uk Subject: Dnsmasq-discuss Digest, Vol 138, Issue 13 Send Dnsmasq-discuss mailing list submissions to dnsmasq-discuss@lists.thekelleys.org.uk To subscribe or unsubscribe via the World Wide Web, visit http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss or, via email, send a message with subject or body 'help' to dnsmasq-discuss-requ...@lists.thekelleys.org.uk You can reach the person managing the list at dnsmasq-discuss-ow...@lists.thekelleys.org.uk When replying, please edit your Subject line so it is more specific than "Re: Contents of Dnsmasq-discuss digest..." Today's Topics: 1. Help: Changes when service dnsmasq start is executed (Rahul Jain) 2. Re: Help: Changes when service dnsmasq start is executed (Albert ARIBAUD) 3. Re: Help: Changes when service dnsmasq start is executed (/dev/rob0) 4. Re: DHCPv6 ULA & Global address allocation & Apple devices (Kevin Darbyshire-Bryant) 5. Re: Dnsmasq-discuss search facility (s.O.T.) (Simon Kelley) 6. Re: DHCPv6 ULA & Global address allocation & Apple devices (Kevin Darbyshire-Bryant) -- Message: 1 Date: Mon, 21 Nov 2016 13:43:24 + From: Rahul Jain <rahul2...@outlook.com> To: "dnsmasq-discuss@lists.thekelleys.org.uk" <dnsmasq-discuss@lists.thekelleys.org.uk> Subject: [Dnsmasq-discuss] Help: Changes when service dnsmasq start is executed Message-ID: <mwhpr19mb09582c4881f3aca46e62c10bb7...@mwhpr19mb0958.namprd19.prod.outlook.com> Content-Type: text/plain; charset="iso-8859-1" Hi all, I want to know about all the changes(internally as in files etc) when "service dnsmasq start" is executed. I noticed one change that it edits the /etc/resolv.conf. The reason is when I set the add-mac option in /etc/dnsmasq.conf and start the dnsmasq service, I'm able to get the EDNS0 option in a dns query but when I compiled from the source and ran it, the same thing doesn't happen. Thanks & Regards, Rahul Jain -- next part -- An HTML attachment was scrubbed... URL: <http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/attachments/20161121/fb2c706e/attachment-0001.html> -- Message: 2 Date: Mon, 21 Nov 2016 15:45:25 +0100 From: Albert ARIBAUD <albert.arib...@free.fr> To: Rahul Jain <rahul2...@outlook.com> Cc: "dnsmasq-discuss@lists.thekelleys.org.uk" <dnsmasq-discuss@lists.thekelleys.org.uk> Subject: Re: [Dnsmasq-discuss] Help: Changes when service dnsmasq start is executed Message-ID: <20161121154525.0df935ba@lilith> Content-Type: text/plain; charset=UTF-8 Hi Rahul, Le Mon, 21 Nov 2016 13:43:24 + Rahul Jain <rahul2...@outlook.com> a ?crit: > Hi all, > > I want to know about all the changes(internally as in files etc) > when "service dnsmasq start" is executed. I noticed one change that > it edits the /etc/resolv.conf. The reason is when I set the add-mac > option in /etc/dnsmasq.conf and start the dnsmasq service, I'm able > to get the EDNS0 option in a dns query but when I compiled from the > source and ran it, the same thing doesn't happen. I believe you are mistaking two things here: the dnsmasq executable on the one hand, and the operating system use of dnsmasq on the other hand. The dnsmasq project only provides the dnsmasq executable. It does not provide the scripts that the "service dnsmasq start" or "service dnsmasq stop" commands will run. These scripts are part of the operating system, and may actually vary from distribution to distribution. For instance, dnsmasq *never* edits the /etc/resolv.conf file -- this is a system change which only the system can perform in a consistent way. To understand what "service dnsmasq *" does on your system, you should refer to the documentation of the distribution you are using. > Thanks & Regards, > > Rahul Jain Amicalement, -- Albert. -- Message: 3 Date: Mon, 21 Nov 2016 09:44:31 -0600 From: /dev/rob0 <r...@gmx.co.uk> To: dnsmasq-discuss@lists.thekelleys.org.uk Subject: Re: [Dnsmasq-discuss] Help
Re: [Dnsmasq-discuss] DHCPv6 ULA & Global address allocation & Apple devices
On 21/11/16 15:52, Kevin Darbyshire-Bryant wrote: PS: As a total hack, I got dnsmasq to ignore any requested addresses. Dnsmasq replies with both ULA & Global addresses in the reply...and my iPad is happy...it takes the global address. Nope, the above worked temporarily by luck rather than judgement. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Dnsmasq-discuss search facility (s.O.T.)
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 I'm almost completely sure I've never done anything to remove the advertising from the mail-archive pages. I'm absolutely that I've not paid for that. Cheers, Simon. On 17/11/16 16:18, Jim Alles wrote: > Simon, > > I very much like the mail-archive facility for searching previous > topics, > https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/i ndex.html > > and have suggested it to another mailman administrator. > > Can you tell me if you have paid the folks at mail-archive to > remove advertising from the mail pages? > > Thanks, Jim A. > > > > ___ Dnsmasq-discuss > mailing list Dnsmasq-discuss@lists.thekelleys.org.uk > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss > -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBCAAGBQJYMzf/AAoJEBXN2mrhkTWi4TwP/RwkbNsRXW6frD+YCnklLyYV QdKACi7wBmrr1ILYpLErCFYPQD1pgK6NLzISjSXK1hnh1ucmEuc+Y9HYT0A7VcYa dLYiJuTslYYU1XShrrwn4hHjCdomK39OWQeSWZ3vHgGsHPuLaIVy+xwZx8J9N+lA 98q9L7pD6hDBA/e5ygbtRLiQPOv5VkVv/nlNDwEH6+sTyp1RSfR+1EEz6rVcMQ/1 L2IDDvz/MdRV4QVg+5hFxnaytm6af6L7qomhxzjqjaf2DF0ENAUq1R/RIubuetMw Q5fxcPhY9ID4B0G2whPgZ4PB8NAY3elNmjuKffrKRGjVKvrqyInUhRslw1PQLP7B 2pk3oUTWsmsVBQGsNxVSTJzpD7zo0nZUVlzxO5tC08Qx5hxBl9yH3ZbY5aodTE+L vYP1bl1S08loSdGKxsbhsaYewoCkUI7HTbn4fa8bIy0UEqk++ZW0RmF5a79HiRPo RGryj96R9jYGYfmGjprwF8r1yek1LmZmLFKtQcPSu3BZ+Z08/65t+2zaMhV76OjR mayaQBg5DRgIBxBt0AHey9akfe8NJbjKLekbxEWkL/N875Vjc0DsGFzdp9ocoX2T NqYfSpxiyXHefYcORiC7HXmbTBWuX1AhQeYDhr0H/ktB+B8kG+aJf45q7dlTZQZr /1rwE0Op5SYBKVKq4a9X =Ek2Y -END PGP SIGNATURE- ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] DHCPv6 ULA & Global address allocation & Apple devices
I've got some packet captures now that have helped answer some of the
questions.
1) The DHCPADVERTISE in the log are included in just one packet.
2) The solicits from my ipad and the advertises are identical except
dnsmasq presents the ULA address first whereas odhcpd presents the
global address first. Both ULA & global are included, just the order
gets swapped.
3) The ipad requests the IPv6 address presented first in the solicit.
So for odhcpd it requests global, whereas for dnsmasq it requests ULA.
4) dnsmasq replies with and only with the requested address (ULA) in
this case. odhcpd replies with both global and ULA addresses.
A few questions result:
1) Should dnsmasq reply with all available dhcpv6 ranges even if one
specific address only is requested, like odhcpd?
2) Should dnsmasq re-order its replies in the solicits to present global
first?
3) Is Apple wrong?
Help! :-)
Kevin
PS: As a total hack, I got dnsmasq to ignore any requested addresses.
Dnsmasq replies with both ULA & Global addresses in the reply...and my
iPad is happy...it takes the global address.
--- a/src/rfc3315.c
+++ b/src/rfc3315.c
@@ -867,13 +867,10 @@ static int dhcp6_no_relay(struct state *
if (!check_ia(state, opt, _end, _option))
continue;
-if (!ia_option)
- {
/* If we get a request with a IA_*A without addresses,
treat it exactly like
a SOLICT with rapid commit set. */
save_counter(start);
goto request_no_address;
- }
o = build_ia(state, );
___
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Re: [Dnsmasq-discuss] Help: Changes when service dnsmasq start is executed
On Mon, Nov 21, 2016 at 01:43:24PM +, Rahul Jain wrote: > I want to know about all the changes(internally as in files etc) > when "service dnsmasq start" is executed. I noticed one change that This question should be directed to your distro. Whilst Simon might have some involvement with implementing the init scripts on certain distros, it cannot be answered without knowing what distro (and the version thereof) you are using. > it edits the /etc/resolv.conf. The reason is when I set the add-mac > option in /etc/dnsmasq.conf and start the dnsmasq service, I'm able > to get the EDNS0 option in a dns query but when I compiled from the > source and ran it, the same thing doesn't happen. -- http://rob0.nodns4.us/ Offlist GMX mail is seen only if "/dev/rob0" is in the Subject: ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
[Dnsmasq-discuss] DHCPv6 ULA & Global address allocation & Apple devices
Hi All, This problem has been around a while (forever?) but it's only just annoyed me sufficiently to investigate. The box in question is running a recent version LEDE and in my case dnsmasq git head bleeding edge. LEDE normally uses its homegrown odhcpd to hand out DHCPv6 addresses, whereas I choose to disable this and use dnsmasq. I use DHCPv6 stateful to hand out addresses, no SLAAC. The problem is that some devices (Apple) only obtain a ULA based address allocation when using dnsmasq. Using odhcpd they obtain both a ULA and global address. I've previously worked around this simply by removing the ULA prefix from the LAN interface but the question remainswhy does this and should this happen? Who is wrong? dnsmasq or odhcpd? dnsmasq: Mon Nov 21 10:25:49 2016 daemon.info dnsmasq-dhcp[27664]: DHCPSOLICIT(br-lan) 00:01:00:01:18:c6:20:23:ac:3c:0b:0c:e7:fd Mon Nov 21 10:25:49 2016 daemon.info dnsmasq-dhcp[27664]: DHCPADVERTISE(br-lan) fdb5:c64a:3cd0:2b::4ff0:198e 00:01:00:01:18:c6:20:23:ac:3c:0b:0c:e7:fd Mon Nov 21 10:25:49 2016 daemon.info dnsmasq-dhcp[27664]: DHCPADVERTISE(br-lan) 2a02:c7f:1220:bf2b::4ff0:198e 00:01:00:01:18:c6:20:23:ac:3c:0b:0c:e7:fd Mon Nov 21 10:25:49 2016 daemon.info dnsmasq-dhcp[27664]: DHCPREQUEST(br-lan) 00:01:00:01:18:c6:20:23:ac:3c:0b:0c:e7:fd Mon Nov 21 10:25:49 2016 daemon.info dnsmasq-dhcp[27664]: DHCPREPLY(br-lan) fdb5:c64a:3cd0:2b::4ff0:198e 00:01:00:01:18:c6:20:23:ac:3c:0b:0c:e7:fd Curiously, the solicit gets responded to by two advertises, one ULA, one global. The follow up dhcprequest only gets the single (ULA) response. odhcpd: Mon Nov 21 10:27:48 2016 daemon.warn odhcpd[1426]: DHCPV6 SOLICIT IA_NA from 0001000118c62023ac3c0b0ce7fd on br-lan: ok 2a02:c7f:1220:bf2b::85e/128 fdb5:c64a:3cd0:2b::85e/128 Clearly the logging is very different and ideally I should grab a packet dump (being worked on!) to see how this is handled at the packet level (e.g. does dnsmasq send two reply packets vs odhcpd sends one but with two answers as hinted by the logs) Insight and assistance appreciated :-) Kevin ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
