Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
On 04/10/12 00:32, Carlos Laviola wrote: On Tue, Oct 2, 2012 at 4:52 PM, Simon Kelley si...@thekelleys.org.uk wrote: On 02/10/12 14:56, Dan Williams wrote: On Mon, 2012-10-01 at 21:49 +0200, Sean Boran wrote: Perhaps you clients are getting their addresses from router advertisement, and not DHCP. So disable RA first in dnsmasq (and make sure no router or other host is publishing one) You don't want to disable RA, you want to tell clients to use managed configuration in the RA. If you disable RA, then nothing on that link will have a default router and thus no way to get packets to anything that's not in the broadcast domain. DHCPv6 does not have any facility to provide a default gateway like IPv4, since that's precisely the functionality of RAs. So you really want to reconfigure either dnsmasq or radvd to set the M (Managed) flag, which will tell the clients to get their address from DHCPv6, not generate one from the RA prefix option. Dan is right, and the way to do this in dnsmasq is to define a dhcp-range, and set the global enable-ra flag. That will send RA (for the default route) with the M flag set (no SLAAC address). If you want SLAAC addresses _as_well_ as DHCPv6 assigned ones, add the slaac keyword to the dhcp-range. That clears the M flag. I tried all this, yet it still won't work. It used to work when I used radvd + the WIDE DHCP daemon. I'm at a loss here... Thanks for all the help, though. See my later post, which has more details. The best thing to do would be to capture RA packets from the working, radvd system and the non-working dnsmasq one, so that we can analyse the difference. Simon. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
On Tue, Oct 2, 2012 at 4:52 PM, Simon Kelley si...@thekelleys.org.uk wrote: On 02/10/12 14:56, Dan Williams wrote: On Mon, 2012-10-01 at 21:49 +0200, Sean Boran wrote: Perhaps you clients are getting their addresses from router advertisement, and not DHCP. So disable RA first in dnsmasq (and make sure no router or other host is publishing one) You don't want to disable RA, you want to tell clients to use managed configuration in the RA. If you disable RA, then nothing on that link will have a default router and thus no way to get packets to anything that's not in the broadcast domain. DHCPv6 does not have any facility to provide a default gateway like IPv4, since that's precisely the functionality of RAs. So you really want to reconfigure either dnsmasq or radvd to set the M (Managed) flag, which will tell the clients to get their address from DHCPv6, not generate one from the RA prefix option. Dan is right, and the way to do this in dnsmasq is to define a dhcp-range, and set the global enable-ra flag. That will send RA (for the default route) with the M flag set (no SLAAC address). If you want SLAAC addresses _as_well_ as DHCPv6 assigned ones, add the slaac keyword to the dhcp-range. That clears the M flag. I tried all this, yet it still won't work. It used to work when I used radvd + the WIDE DHCP daemon. I'm at a loss here... Thanks for all the help, though. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
Looks like only v6 there. Is DHCP v6 enabled on the client? Perhaps disable the v4 dhcp in dnsmasq, test the pure v6, then bring back in v4? Have a look at /tmp/dhcp.leases too. You can't sniff the wire? Sean On 2 October 2012 02:42, Carlos Laviola carlos.lavi...@gmail.com wrote: On Mon, Oct 1, 2012 at 4:49 PM, Sean Boran s...@boran.com wrote: Perhaps you clients are getting their addresses from router advertisement, and not DHCP. So disable RA first in dnsmasq (and make sure no router or other host is publishing one) Syntax like this works, I used it: dhcp-host=ubuntu12,[2001::666::1] perhaps a v6 range needs to be specified: dhcp-range=2001::666::1, 2001::666::4, 24h make sure you're using a very recent version of dnsmasq. I tried this to no avail. Actually, if I don't specify something like slaac (like you did above) the client doesn't get any IP. Here's my conf right now and the log from a client: -- dhcp-range=2001:1291:2ad::2,2001:1291:2ad::, 24h dhcp-host=georgia,192.168.1.2,[2001:1291:2ad::2] -- -- Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: started, version 2.62 cachesize 150 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP DHCPv6 no-Lua TFTP no-conntrack Oct 1 21:38:44 ellis daemon.info dnsmasq-dhcp[2652]: DHCP, IP range 192.168.1.100 -- 192.168.1.249, lease time 12h Oct 1 21:38:44 ellis daemon.info dnsmasq-dhcp[2652]: DHCP, IP range 2001:1291:2ad::2 -- 2001:1291:2ad::, lease time 1d Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 2620:0:ccd::2#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 2620:0:ccc::2#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 2001:4860:4860::8844#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 2001:4860:4860::#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 8.8.4.4#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 8.8.8.8#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using local addresses only for domain home.laviola.org Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: read /etc/hosts - 2 addresses Oct 1 21:38:44 ellis daemon.info dnsmasq-dhcp[2652]: read /etc/ethers - 0 addresses Oct 1 21:38:54 ellis daemon.info dnsmasq-dhcp[2652]: 4243904525 available DHCP range: 192.168.1.100 -- 192.168.1.249 Oct 1 21:38:54 ellis daemon.info dnsmasq-dhcp[2652]: 4243904525 client provides name: georgia Oct 1 21:38:54 ellis daemon.info dnsmasq-dhcp[2652]: 4243904525 DHCPRELEASE(br-lan) 192.168.1.2 d8:d3:85:b2:da:b3 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 available DHCP range: 192.168.1.100 -- 192.168.1.249 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 client provides name: georgia Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 DHCPDISCOVER(br-lan) 192.168.1.2 d8:d3:85:b2:da:b3 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 tags: lan, known, br-lan Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 DHCPOFFER(br-lan) 192.168.1.2 d8:d3:85:b2:da:b3 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 requested options: 1:netmask, 28:broadcast, 2:time-offset, 3:router, Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 requested options: 15:domain-name, 6:dns-server, 119:domain-search, Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 requested options: 12:hostname, 44:netbios-ns, 47:netbios-scope, Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 requested options: 26:mtu, 121:classless-static-route, 42:ntp-server Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 next server: 192.168.1.1 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 1 option: 53 message-type 2 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 54 server-identifier 192.168.1.1 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 51 lease-time 43200 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 58 T1 21600 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 59 T2 37800 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 1 netmask 255.255.255.0 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 28 broadcast 192.168.1.255 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 3 router 192.168.1.1 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 6 dns-server 192.168.1.1 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 16 option: 15 domain-name home.laviola.org Oct 1 21:38:59 ellis daemon.info
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
On Mon, 2012-10-01 at 21:49 +0200, Sean Boran wrote: Perhaps you clients are getting their addresses from router advertisement, and not DHCP. So disable RA first in dnsmasq (and make sure no router or other host is publishing one) You don't want to disable RA, you want to tell clients to use managed configuration in the RA. If you disable RA, then nothing on that link will have a default router and thus no way to get packets to anything that's not in the broadcast domain. DHCPv6 does not have any facility to provide a default gateway like IPv4, since that's precisely the functionality of RAs. So you really want to reconfigure either dnsmasq or radvd to set the M (Managed) flag, which will tell the clients to get their address from DHCPv6, not generate one from the RA prefix option. Dan Syntax like this works, I used it: dhcp-host=ubuntu12,[2001::666::1] perhaps a v6 range needs to be specified: dhcp-range=2001::666::1, 2001::666::4, 24h make sure you're using a very recent version of dnsmasq. tcpdump ip6 can show what packets are on the wire too. Sean On 1 October 2012 01:38, Carlos Laviola carlos.lavi...@gmail.com wrote: Hello everyone, I've recently switched to using only dnsmasq on openwrt since finding out that it could also hand out IPv6 addresses. This works, but the clients only get SLAAC addresses. Also, the manpage states: A single dhcp-host may contain an IPv4 address or an IPv6 address, or both. IPv6 addresses must be bracketed by square brackets thus: --dhcp-host=laptop,[1234::56] Note that in IPv6 DHCP, the hardware address is not normally available, so a client must be identified by client-id (called client DUID in IPv6-land) or hostname. How do I find this client-id/DUID? Even with the log-dhcp directive, I don't see anything that looks like it. Here are my conffiles. openwrt auto-generates a /var/etc/dnsmasq.conf based on a file written in their own DSL (/etc/config/dhcp), which is it's split in two files. /var/etc/dnsmasq.conf: -- conf-file=/etc/dnsmasq.conf dhcp-authoritative domain-needed no-resolv localise-queries read-ethers bogus-priv expand-hosts domain=home.laviola.org server=/home.laviola.org/ server=8.8.8.8 server=8.8.4.4 server=2001:4860:4860:: server=2001:4860:4860::8844 server=2620:0:ccc::2 server=2620:0:ccd::2 dhcp-leasefile=/tmp/dhcp.leases stop-dns-rebind rebind-localhost-ok dhcp-range=lan,192.168.1.100,192.168.1.249,255.255.255.0,12h no-dhcp-interface=pppoe-wan address=/ellis.home.laviola.org/192.168.1.1 ptr-record=1.1.168.192.in-addr.arpa,ellis.home.laviola.org -- /etc/dnsmasq.conf: -- dhcp-range=2001::666::,slaac enable-ra dhcp-host=192.168.1.2,[2001::666::1],client1 dhcp-host=192.168.1.3,[2001::666::2],client2 dhcp-host=192.168.1.4,[2001::666::3],client3 dhcp-host=192.168.1.5,[2001::666::4],client4 log-dhcp -- Thanks for your help! Best regards, Carlos ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
On 02/10/12 14:56, Dan Williams wrote: On Mon, 2012-10-01 at 21:49 +0200, Sean Boran wrote: Perhaps you clients are getting their addresses from router advertisement, and not DHCP. So disable RA first in dnsmasq (and make sure no router or other host is publishing one) You don't want to disable RA, you want to tell clients to use managed configuration in the RA. If you disable RA, then nothing on that link will have a default router and thus no way to get packets to anything that's not in the broadcast domain. DHCPv6 does not have any facility to provide a default gateway like IPv4, since that's precisely the functionality of RAs. So you really want to reconfigure either dnsmasq or radvd to set the M (Managed) flag, which will tell the clients to get their address from DHCPv6, not generate one from the RA prefix option. Dan is right, and the way to do this in dnsmasq is to define a dhcp-range, and set the global enable-ra flag. That will send RA (for the default route) with the M flag set (no SLAAC address). If you want SLAAC addresses _as_well_ as DHCPv6 assigned ones, add the slaac keyword to the dhcp-range. That clears the M flag. Simon. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
Am 02.10.2012 21:52, schrieb Simon Kelley: On 02/10/12 14:56, Dan Williams wrote: So you really want to reconfigure either dnsmasq or radvd to set the M (Managed) flag, which will tell the clients to get their address from DHCPv6, not generate one from the RA prefix option. Dan is right, and the way to do this in dnsmasq is to define a dhcp-range, and set the global enable-ra flag. That will send RA (for the default route) with the M flag set (no SLAAC address). If you want SLAAC addresses _as_well_ as DHCPv6 assigned ones, add the slaac keyword to the dhcp-range. That clears the M flag. That's wrong. The M flag is for DHCPv6 only. It says nothing about SLAAC. SLAAC is available, if a prefix is advertise. Regards, Hartmut ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
On 02/10/12 21:53, e9hack wrote: Am 02.10.2012 21:52, schrieb Simon Kelley: On 02/10/12 14:56, Dan Williams wrote: So you really want to reconfigure either dnsmasq or radvd to set the M (Managed) flag, which will tell the clients to get their address from DHCPv6, not generate one from the RA prefix option. Dan is right, and the way to do this in dnsmasq is to define a dhcp-range, and set the global enable-ra flag. That will send RA (for the default route) with the M flag set (no SLAAC address). If you want SLAAC addresses _as_well_ as DHCPv6 assigned ones, add the slaac keyword to the dhcp-range. That clears the M flag. That's wrong. The M flag is for DHCPv6 only. It says nothing about SLAAC. SLAAC is available, if a prefix is advertise. I'm going from memory of experiments months ago, but I'm sure that the Linux kernel IPv6 autoconfiguration code, at least, does not assign SLAAC addresses if it gets RAs with the M bit set. Simon. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
Am 02.10.2012 23:09, schrieb Simon Kelley: On 02/10/12 21:53, e9hack wrote: Am 02.10.2012 21:52, schrieb Simon Kelley: On 02/10/12 14:56, Dan Williams wrote: So you really want to reconfigure either dnsmasq or radvd to set the M (Managed) flag, which will tell the clients to get their address from DHCPv6, not generate one from the RA prefix option. Dan is right, and the way to do this in dnsmasq is to define a dhcp-range, and set the global enable-ra flag. That will send RA (for the default route) with the M flag set (no SLAAC address). If you want SLAAC addresses _as_well_ as DHCPv6 assigned ones, add the slaac keyword to the dhcp-range. That clears the M flag. That's wrong. The M flag is for DHCPv6 only. It says nothing about SLAAC. SLAAC is available, if a prefix is advertise. I'm going from memory of experiments months ago, but I'm sure that the Linux kernel IPv6 autoconfiguration code, at least, does not assign SLAAC addresses if it gets RAs with the M bit set. I'm using radvd and dnsmasq. Dnsmasq is used for DHCPv6 but not for RA. If I disable the M flag at the radvd side, linux and windows 7 clients doesn't ask for a DHCPv6 lease, but they are using a SLAAC address. If I enable the M flag, both clients are using the SLAAC address and asking for a DHCPv6 lease. I'm using DHCPv6 (and a ULA prefix with RA) to configure site-local address. RA is used for global addresses to access the internet over a 6to4 auto tunnel with a prefix of 2002::::/64. Regards, Hartmut ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
Perhaps you clients are getting their addresses from router advertisement, and not DHCP. So disable RA first in dnsmasq (and make sure no router or other host is publishing one) Syntax like this works, I used it: dhcp-host=ubuntu12,[2001::666::1] perhaps a v6 range needs to be specified: dhcp-range=2001::666::1, 2001::666::4, 24h make sure you're using a very recent version of dnsmasq. tcpdump ip6 can show what packets are on the wire too. Sean On 1 October 2012 01:38, Carlos Laviola carlos.lavi...@gmail.com wrote: Hello everyone, I've recently switched to using only dnsmasq on openwrt since finding out that it could also hand out IPv6 addresses. This works, but the clients only get SLAAC addresses. Also, the manpage states: A single dhcp-host may contain an IPv4 address or an IPv6 address, or both. IPv6 addresses must be bracketed by square brackets thus: --dhcp-host=laptop,[1234::56] Note that in IPv6 DHCP, the hardware address is not normally available, so a client must be identified by client-id (called client DUID in IPv6-land) or hostname. How do I find this client-id/DUID? Even with the log-dhcp directive, I don't see anything that looks like it. Here are my conffiles. openwrt auto-generates a /var/etc/dnsmasq.conf based on a file written in their own DSL (/etc/config/dhcp), which is it's split in two files. /var/etc/dnsmasq.conf: -- conf-file=/etc/dnsmasq.conf dhcp-authoritative domain-needed no-resolv localise-queries read-ethers bogus-priv expand-hosts domain=home.laviola.org server=/home.laviola.org/ server=8.8.8.8 server=8.8.4.4 server=2001:4860:4860:: server=2001:4860:4860::8844 server=2620:0:ccc::2 server=2620:0:ccd::2 dhcp-leasefile=/tmp/dhcp.leases stop-dns-rebind rebind-localhost-ok dhcp-range=lan,192.168.1.100,192.168.1.249,255.255.255.0,12h no-dhcp-interface=pppoe-wan address=/ellis.home.laviola.org/192.168.1.1 ptr-record=1.1.168.192.in-addr.arpa,ellis.home.laviola.org -- /etc/dnsmasq.conf: -- dhcp-range=2001::666::,slaac enable-ra dhcp-host=192.168.1.2,[2001::666::1],client1 dhcp-host=192.168.1.3,[2001::666::2],client2 dhcp-host=192.168.1.4,[2001::666::3],client3 dhcp-host=192.168.1.5,[2001::666::4],client4 log-dhcp -- Thanks for your help! Best regards, Carlos ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
On Mon, Oct 1, 2012 at 4:49 PM, Sean Boran s...@boran.com wrote: Perhaps you clients are getting their addresses from router advertisement, and not DHCP. So disable RA first in dnsmasq (and make sure no router or other host is publishing one) Syntax like this works, I used it: dhcp-host=ubuntu12,[2001::666::1] perhaps a v6 range needs to be specified: dhcp-range=2001::666::1, 2001::666::4, 24h make sure you're using a very recent version of dnsmasq. I tried this to no avail. Actually, if I don't specify something like slaac (like you did above) the client doesn't get any IP. Here's my conf right now and the log from a client: -- dhcp-range=2001:1291:2ad::2,2001:1291:2ad::, 24h dhcp-host=georgia,192.168.1.2,[2001:1291:2ad::2] -- -- Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: started, version 2.62 cachesize 150 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP DHCPv6 no-Lua TFTP no-conntrack Oct 1 21:38:44 ellis daemon.info dnsmasq-dhcp[2652]: DHCP, IP range 192.168.1.100 -- 192.168.1.249, lease time 12h Oct 1 21:38:44 ellis daemon.info dnsmasq-dhcp[2652]: DHCP, IP range 2001:1291:2ad::2 -- 2001:1291:2ad::, lease time 1d Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 2620:0:ccd::2#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 2620:0:ccc::2#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 2001:4860:4860::8844#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 2001:4860:4860::#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 8.8.4.4#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using nameserver 8.8.8.8#53 Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: using local addresses only for domain home.laviola.org Oct 1 21:38:44 ellis daemon.info dnsmasq[2652]: read /etc/hosts - 2 addresses Oct 1 21:38:44 ellis daemon.info dnsmasq-dhcp[2652]: read /etc/ethers - 0 addresses Oct 1 21:38:54 ellis daemon.info dnsmasq-dhcp[2652]: 4243904525 available DHCP range: 192.168.1.100 -- 192.168.1.249 Oct 1 21:38:54 ellis daemon.info dnsmasq-dhcp[2652]: 4243904525 client provides name: georgia Oct 1 21:38:54 ellis daemon.info dnsmasq-dhcp[2652]: 4243904525 DHCPRELEASE(br-lan) 192.168.1.2 d8:d3:85:b2:da:b3 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 available DHCP range: 192.168.1.100 -- 192.168.1.249 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 client provides name: georgia Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 DHCPDISCOVER(br-lan) 192.168.1.2 d8:d3:85:b2:da:b3 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 tags: lan, known, br-lan Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 DHCPOFFER(br-lan) 192.168.1.2 d8:d3:85:b2:da:b3 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 requested options: 1:netmask, 28:broadcast, 2:time-offset, 3:router, Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 requested options: 15:domain-name, 6:dns-server, 119:domain-search, Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 requested options: 12:hostname, 44:netbios-ns, 47:netbios-scope, Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 requested options: 26:mtu, 121:classless-static-route, 42:ntp-server Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 next server: 192.168.1.1 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 1 option: 53 message-type 2 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 54 server-identifier 192.168.1.1 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 51 lease-time 43200 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 58 T1 21600 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 59 T2 37800 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 1 netmask 255.255.255.0 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 28 broadcast 192.168.1.255 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 3 router 192.168.1.1 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 4 option: 6 dns-server 192.168.1.1 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 sent size: 16 option: 15 domain-name home.laviola.org Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 available DHCP range: 192.168.1.100 -- 192.168.1.249 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 client provides name: georgia Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 DHCPREQUEST(br-lan) 192.168.1.2 d8:d3:85:b2:da:b3 Oct 1 21:38:59 ellis daemon.info dnsmasq-dhcp[2652]: 104793949 tags: lan, known, br-lan
[Dnsmasq-discuss] Can't figure out how to assign static IPv6 addresses to clients
Hello everyone, I've recently switched to using only dnsmasq on openwrt since finding out that it could also hand out IPv6 addresses. This works, but the clients only get SLAAC addresses. Also, the manpage states: A single dhcp-host may contain an IPv4 address or an IPv6 address, or both. IPv6 addresses must be bracketed by square brackets thus: --dhcp-host=laptop,[1234::56] Note that in IPv6 DHCP, the hardware address is not normally available, so a client must be identified by client-id (called client DUID in IPv6-land) or hostname. How do I find this client-id/DUID? Even with the log-dhcp directive, I don't see anything that looks like it. Here are my conffiles. openwrt auto-generates a /var/etc/dnsmasq.conf based on a file written in their own DSL (/etc/config/dhcp), which is it's split in two files. /var/etc/dnsmasq.conf: -- conf-file=/etc/dnsmasq.conf dhcp-authoritative domain-needed no-resolv localise-queries read-ethers bogus-priv expand-hosts domain=home.laviola.org server=/home.laviola.org/ server=8.8.8.8 server=8.8.4.4 server=2001:4860:4860:: server=2001:4860:4860::8844 server=2620:0:ccc::2 server=2620:0:ccd::2 dhcp-leasefile=/tmp/dhcp.leases stop-dns-rebind rebind-localhost-ok dhcp-range=lan,192.168.1.100,192.168.1.249,255.255.255.0,12h no-dhcp-interface=pppoe-wan address=/ellis.home.laviola.org/192.168.1.1 ptr-record=1.1.168.192.in-addr.arpa,ellis.home.laviola.org -- /etc/dnsmasq.conf: -- dhcp-range=2001::666::,slaac enable-ra dhcp-host=192.168.1.2,[2001::666::1],client1 dhcp-host=192.168.1.3,[2001::666::2],client2 dhcp-host=192.168.1.4,[2001::666::3],client3 dhcp-host=192.168.1.5,[2001::666::4],client4 log-dhcp -- Thanks for your help! Best regards, Carlos ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
