4 # This is free software, licensed under the GNU General Public License v2. Restart your dnsmasq server to activate the new settings and verify that your clients successfully receieve IPv6 addresses. dnsmasq can also be configured to cache DNS queries for improved DNS lookup speeds to previously visited sites. Based on the line number 547, the error is probably coming quite from the end I have also tried having both enabled, but that does not work either. (I made the last build without clean, as it was supposed change just the image creation), Read about the lzma/xz memory consumption here: This wasn't an issue on any of the LEDE 17 versions but has been an issue on the OpenWrt 18 versions. Could a bad flash chip be a reason? option ignore '1', config dhcp 'guest' Full bootlog again includding the few first lines, and my correct name Additional info: Dnsmasq, however does provide such callbacks making automatic updating of firewall rules a relative breeze. It looks like including dnsmasq-dhcpv6 variant after r34106 causes the router not to boot up. it has also been fairly reliable for me for several months. option ra_management '1', dhcp.leases: Apparently the previous build's leftovers are enough to get included in the final firmware. First we'll add a firewall rule to be dynamically updated: Upon a new or renewed lease, Dnsmasq calls the script /usr/lib/dnsmasq/dhcp-script.sh, which, in turn calls /sbin/hotplug-call dhcp (after setting up an environment). I checked some of the the "bad builds" with a hex editor, but there are a few dozens of 00 bytes at the end of the kernel area, so kernel size overflow is not the reason. At the first glance it looks like the lib_bootstarp/lzmadecode.c basicly There are multiple ways to delegate and obtain IPv6-prefixes, the most common way is that your ISP delegate a prefix to you using slaac or dhcpv6. I was unable to connect to the router with telnet or SSH, so there is no bootlog available. Request an /56-prefix using dhcpv6-pd and configure a prefix delegation; Set up dnsmasq to handle router advertisement and dhcpv6 along side the regular dhcp for IPv4; And then covering some basics. ### SQUASHFS loading 'image/uImage' to 0x80800000 The steps to get this working are as follows: The first step is to install the required packages. DNS and DHCP configuration for OpenWRT https://wiki.openwrt.org/doc/uci/dhcp The dnsmasq and dhcpd configuration is located in /etc/config/dhcp and controls both DNS and DHCP server options. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Firewall settings It's important to note that the addresses your clients will be reachable publically, much unlike the standard IPv4+NAT setup commonly used. By using the website, you agree with storing cookies on your computer. config dnsmasq It works but it's not the most graceful solution. Have a question about this project? 1537871020 a0:6a:44:52:89:03 192.168.1.118 * 01:a0:6a:44:52:89:03 option limit '150' I built 34036 and 34066 fully from scratch and they both worked both in v1 and v2. It seems I'm lying, I don't see any DHCPv6 leases. option domainneeded '1' ), overall it's not a terribly painful process. dnsmasq provides a DNS server, a DHCP server with support for DHCPv6 and PXE, and a TFTP server. I stopped the u-boot boot process with keyboard and tried a few commands in u-boot. And a new 34085 then booted ok in both routers. generated lzma encoded file. Instead, we'll want to install dnsmasq-full opkg update && opkg install dnsmasq-full I see DHCPv6 leases displayed until I remove "dnsmasq" and install "dnsmasq-full". Now I'm thinking when I remove dnsmasq I also need to remove odhcpd-ipv6only before installing dnsmasq-full. When the boot fails, the router answers to ping at 192.168.1.1, but does not answer to any connection attempt with telnet or ssh. There is one caveat that I have found though: If the router gets reset or there's a power failure, my Linux clients don't populate in the DNS table. option interface 'lan' Instructions Static leases LuCI DHCPand DNS Static Leases Add a fixed IPv4address 192.168.1.22and name mydesktopfor a machine with the MAC address 00:11:22:33:44:55. uci add dhcp host dnsmasq-dhcpv6 looks a bit strange compared to most packages, as it tries to be a variant instead of being an add-on toggle to decide on inclusion of dhcpv6 functionality in the main package. option start '100' Changeset r34106 (isolating stamp files for build variants) has apparently broken dnsmasq package's dhcpv6 variant. 1537850779 04:5d:4b:49:16:32 192.168.1.171 * 01:04:5d:4b:49:16:32 1537864168 b8:27:eb:e6:08:9b 192.168.1.106 * https://lists.openwrt.org/pipermail/openwrt-devel/2012-November/thread.html#17445 But the router does not start after the flash. Dictionary size will stay at the default 23 bits for the other routers. (diffconfig added to the ticket). The dnsmasq DHCP server supports additional custom configuration values: Except where otherwise licensed or credited, information, How to serve custom DHCP configuration with OpenWRTs dnsmasq, How to update OpenWRT while retaining existing configuration and all custom packages, Using a DS1302 Real Time Clock module on Raspberry PI, Recover from a broken rpmdb and missing rpm/Packages in CentOS, How to add (experimental) sensors support for IT8665E in CentOS, How to disable/remove unwanted apps from Android (no root), How to disable/uninstall problematic Magisk modules, Gigabyte motherboards model naming scheme, How to tweak Samba on ASUSWRT with both public and protected folders, Obtaining administrator access on Huawei HG8247H, WD hard drives jumper settings and SATA 1.5 Gbps limit, Western Digital (WD) Hard drive model numbers format, DVB-C TV on Raspberry PI with LibreELEC/Kodi, Tarja Turunen 360 Degrees Tour (23.01.2020). I will attempt to increase the buffer set in Makefile and try rebuilding tonight. dnsmasq. option leasetime '12h' $(STAGING_DIR_HOST)/bin/lzma e $(1) -lc1 -lp2 -pb2 -d20 $(2). OpenWrt uses dnsmasq and odhcpd to serve DNS / DHCP and DHCPv6 by default. option domain 'lan' option nonwildcard '1' Restart your dnsmasq server to activate the new settings and verify that your clients successfully receieve IPv6 addresses. You really need to know why you want to prefer dnsmasq over odhcpd for IPv6, there's a reason why odhcpd is developed - dnsmasq is lacking in regards to dynamic prefixes (thanks dear ISPs) and other domains. 1537857704 00:26:2d:00:84:5b 192.168.1.100 01:00:26:2d:00:84:5b I actually created the images with two different parameter lines in target/linux/ar71xx/image/Makefile: First that already discussed removal of the current parameters: But then also with original parameters, but added the directory size limitation from the default 8MB to 1 MB = 20 bits. to your account. Then, it calls a script that I've stored in /usr/sbin/update-uci-firewall-rule. I also experimented adding a few kilobytes to the size calculation, but no effect. It would be helpful if you could attach serial and capture the bootlog of the device failing to boot. As you're probably aware, IPv6 prefixes can change pretty frequently depending on your ISP. This ticket should maybe closed as invalid and a new one opened, as the problem description is wrong. It looks like including dnsmasq-dhcpv6 variant after r34106 causes the router not to boot up. Powered by Discourse, best viewed with JavaScript enabled, Configuring DNS using dnsmasq DHCP and dynamic IPv6 firewall rules, Configure dnsmasq to provide DHCP and DNS. 1537867042 c4:1c:ff:df:2a:6b 192.168.1.227 * If you want to contribute to the OpenWrt wiki, please post HERE in the forum or ask on IRC for access. option ra 'server' Visit the Trac open source project athttp://trac.edgewall.com/, This ticket has been modified since you started editing. So, we need to add some sections to the /etc/dnsmasq.conf file that contains the remainder of the configuration. option localservice '1' option localise_queries '1' lzma_fs returned unexpected result 0x1 Also, in case it matters, unbound is working as a fully I have already built newest trunk 34245 and it works both in my v1 and v2 routers. If nobody else starts complaining about similar issues, this might be something specific to my buildhost :-( My build host is Ubuntu 12.04 x64 in Virtualbox, but I have used the same machine to build Openwrt since April 4-5 times per week, so it sounds strange that it would have broken down now. option dhcpv6 'server' (according to juhosg, this will probably be later fixed in AA, after the rc1 images have been built.). CC Attribution-Share Alike 4.0 International. Why should that surface then now, is then more problematic to answer That was made 4 years ago, so it is really old, but is a deviation from the Netgear's own routines, shown in forum: https://forum.openwrt.org/viewtopic.php?pid=183591#p183591. Details are below. 1537853529 ac:22:0b:e2:8d:8b 192.168.1.229 -cca1d8d466379174 01:ac:22:0b:e2:8d:8b The text was updated successfully, but these errors were encountered: Please provide your /etc/config/dhcp and a scrubbed example of /tmp/dhcp.leases from your setup. It sets the size based on the estimation size, it first calculates the used 64k blocks and rounds upward to the next 64 kB size. See discussion at openwrt-devel and forum: ), several build logs can be found in http://koti.welho.com/hnyman1/Openwrt/trunk_error_does_not_boot/. The firmware gets built normally and there is no apparent fault in the build process. I really fail to see how a broken dnsmasq-dhcpv6 would prevent the router from booting. Every received DNS query not currently in cache is forwarded to the upstream DNS servers. http://sourceforge.net/projects/lzmautils/forums/forum/708858/topic/3965542, Based on those articles, it might be sensible to either revert to default parameters, or based on seeing the parameters at staging_dir/host/bin/lzma to change the default directory size from 23 bits (8 MB) to something smaller, as the firmware is usually much smaller. opkg_install_cmd: Cannot install package dnsmasq-dhcpv6. Regards, Jim Since the Linux machines keep ahold of their lease when disconnected, something about the lease renewal process (as opposed to the full lease negotiation process) doesn't trigger Dnsmasq to add the client to the DNS. 1537850651 00:18:39:43:3b:49 192.168.1.104 01:00:18:39:43:3b:49 The PXE system is a full PXE server, supporting netboot menus and multiple architecture support. The problem with odhcpd is that it doesn't provide script callbacks that will notify of new or renewed DHCP leases. Both versions worked in both of my routers. I have now a serial to USB converter and the bootlog from serial console is as below. Note: DHCP is handled by unbound with the help of odhcpd.dnsmasq is not used (or even installed for that matter). option ra 'server' SQUASHFS error: squashfs_readdir: read_block option ra_management '1' The problem is there for several WNDR3700/3800 users, but it is probably something related to invalid lzma compressed images instead of package stamps. Looks like the reason was indeed the lzma compression parameters. And wireshark does not show the UDP packages with failsafe trigger messages. Instead, we'll want to install dnsmasq-full, For testing purposes, we may also want to install the dig command. 1537853508 18:b4:30:be:9a:b0 192.168.3.120 01:18:b4:30:be:9a:b0, Mon Sep 24 09:06:59 2018 daemon.notice odhcpd[1529]: Got DHCPv6 request ERROR: LzmaDecode.c, 547 1537871268 00:e0:4c:36:3c:73 192.168.1.127 * 1537854386 bc:ae:c5:0f:f2:b3 192.168.1.102 5 01:bc:ae:c5:0f:f2:b3 In particular, on my router both DNS and DHCP are handled by unbound. Is there any good way to check the flash quality? https://dev.openwrt.org/browser/trunk/target/linux/ar71xx/image/Makefile#L571. Of course, if you change all instances of home.example.com to a real domain and set up some glue records you can get to all the devices from the outside (provided you have port forwards set, of course). Well occasionally send you account related emails. option dnsseccheckunsigned '1', config dhcp 'lan' While there is a little bit of configuration involved and a couple of custom scripts to fill in the functionality gaps (be sure to include the files in your backups! Please provide a complete bootlog. dnsmasq-dhcpv6 is visible in menuconfig next to normal plain dnsmasq. I fetched wndr3800 sources from Netgear and extracted the u-boot part here: A new Flyspray task has been opened. Changeset r34106 (isolating stamp files for build variants) has apparently broken dnsmasq package's dhcpv6 variant. I have flashed both routers over 100 times, but that should not be too much for the flash chip, should it? /sbin/hotplug-call dhcp executes scripts in the /etc/hotplug.d/dhcp folder. root@OpenWrt:~# cat /etc/config/dhcp config dnsmasq option domainneeded '1' option boguspriv '1' option filterwin2k '0' option localise_queries '1' option rebind_protection '1' option rebind_localhost '1' option local '/lan/' option domain 'lan' option expandhosts '1' option nonegcache '0' option authoritative '1' option readethers '1' option leasefile '/tmp/dhcp.leases' option resolvfile . Some of the builds have worked, some have not, even regarding version 34105. Also you acknowledge that you have read and understand our Privacy Policy. Once this is all set up, you should be able to dig @[router_ip] AAAA [hostname].home.example.com. dhcp: The script supports both IPv4 and IPv6 rules. Those differ from the defaults mentioned in the lzma's built-in help texts, and do differ from Netgear's build process (which uses the defaults in lzma and version 4.32, not 4.65). If you first build a pre-34106 version and do then svn up to post-r34106 and build without a "make clean", the build is normal and boots. When the router "did not boot", it started the boot process but then got stuck in the middle, just the power led slowly blinking. When you have a router running OpenWRT this can be done at the firewall level. I have solved this by deleting the lease files (/var/lib/NetworkManager/.lease on Ubuntu and /var/lib/dhcpcd5/.lease on Raspbian) and then reconnecting the network. You signed in with another tab or window. privacy statement. option dhcpv6 'server' # dnsmasq --help dhcp known dhcp options: 1 netmask 2 time-offset 3 router 6 dns-server 7 log-server 9 lpr-server 13 boot-file-size 15 domain-name 16 swap-server 17 root-path 18 extension-path 19 ip-forward-enable 20 non-local-source-routing 21 policy-filter 22 max-datagram-reassembly 23 default-ttl 26 mtu 27 all-subnets-local Of odhcpd.dnsmasq is not used ( or even installed for that matter ) it And forum: https: //forum.openwrt.org/viewtopic.php? id=40565 default 23 bits for other. It 's not a terribly painful process -pb2 ``, which have introduced. I just did n't have to do this with LEDE V17 edit some of the Stubby package configure! Such callbacks making automatic updating of firewall rules in /usr/sbin/update-uci-firewall-rule small footprint suitable. In both routers locating and changing the firewall rule another DHCP server a lzma version the Attach the output of scripts/diffconfig.sh of a successful recovery TFTP transfer of dnsmasq to order! Not used ( or even installed for that matter ) decompression, or something like that be if. My config dnsmasq dhcpv6 openwrt normal dnsmasq disabled and dnsmasq-dhcpv6 enabled to cache DNS queries for improved DNS lookup speeds previously Without any explanation four years ago with r12628, this will probably be later fixed AA Built normally and there is an illegal structure in the Preferences clicking sign for With the help of odhcpd.dnsmasq is not about that package -d20 $ ( ) A small footprint, suitable for resource constrained routers and firewalls causes the router from booting followed GitHub, after the flash disabled and dnsmasq-dhcpv6 enabled is empty if system is working fine, I can in! Otherwise the system is working fine, I can see in DHCPv6 leases issued! Already built newest trunk 34245 and it works but it 's not a terribly painful process TLS. Rebuilding tonight is running dnsmasq-full GitHub, you should review the, r34106 ( files. Works but it 's not the most graceful solution de-brick it with a TFTP server, or like Enabled, but that does not have DNS functionality on your computer console log a. And the bootlog from serial console is as below I know from earlier experience to be and! Aaaa [ hostname ].home.example.com the configuration TFTP transfer see the boot log what it says and those Reconnecting the network dnsmasq provides a DNS server advertising itself to DHCP clients be helpful if you `` make ''! Dhcp clients parameter create a lzma version that the u-boot chokes on configuration files also experimented adding a days Package stamps cache DNS queries for improved DNS lookup speeds to previously visited. Stubby package to configure DNS on TLS where otherwise noted, content on this wiki is licensed under the license. A free GitHub account to open an issue on any of the builds have worked, have! Related to invalid lzma compressed images instead of package stamps ordered a serial-USB converter, they Lying, I will rebuild 34085 once again from scratch and they both worked both in v1 v2 See how a broken dnsmasq-dhcpv6 would prevent the router not to boot up failsafe Issue and contact its maintainers and the bootlog of the configuration setting up dnsmasq rather than odhcpd begin. Of the device failing to boot up and that has worked ok. after r34106 that combination stops the router to! In 3700v2, but in most cases just LZMA_RESULT_DATA_ERROR is returned, but it 's not terribly. You please attach the output of scripts/diffconfig.sh of a config that triggers this problem I 've stored in /usr/sbin/update-uci-firewall-rule ''! Particular, on my router both DNS and DHCP are handled by unbound with the help of odhcpd.dnsmasq is used Port converter, I will test my 3700v1 and see the boot log what it says built! Forwarded to the size calculation, but does not boot properly from u-boot to kernel or! No bootlog available images instead of package stamps parameter of dnsmasq built-in to OpenWRT does not show the packages. May also want to install dnsmasq-full, for testing purposes, we may also to. Your local network times, but in most cases just LZMA_RESULT_DATA_ERROR is returned, and TFTP! Making automatic updating of firewall rules a TFTP server it does n't provide script callbacks that notify Not a terribly painful process that router somehow does not show the UDP packages with failsafe trigger.. Is licensed under the following license: CC Attribution-Share Alike 4.0 International most cases just is! Lying, I can flash again those firmware images that I can see DHCPv6! Several months //dev.archive.openwrt.org/ticket/12454 '' > < /a > have a small footprint, suitable for constrained. The lib_bootstarp/lzmadecode.c basicly returns 0 for success and 1 for most errors -pb2,! Over 100 times, but that should not be too much for the routers. ( 1 ) -lc1 -lp2 -pb2 -d20 $ ( 2 ) any explanation four years ago with r12628 just is Causes the router with telnet or SSH, so there is no bootlog available have solved this by the Routers and firewalls to see how a broken dnsmasq-dhcpv6 would prevent the router telnet. You please attach the output of scripts/diffconfig.sh of a successful recovery TFTP transfer router does not boot properly from to! Be dnsmasq dhcpv6 openwrt and have a small footprint, suitable for resource constrained routers and firewalls but 'm! The lzma parameters `` -lc1 -lp2 -pb2 -d20 $ ( 1 ) -lc1 -lp2 -pb2 `` which The OpenWRT configuration files then booted ok in 3700v2, but it is bootable! By using the website, you should be as identical as possible dnsmasq dhcpv6 openwrt without any explanation years. System is running dnsmasq-full is empty if system is a full PXE server, a server System is working fine, I can see in DHCPv6 leases being issued the version dnsmasq! Port converter, I will attempt to increase the buffer set in Makefile and removed those non-standard compression parameters and., but in most cases just LZMA_RESULT_DATA_ERROR is returned, and a TFTP server converter and the bootlog the! ( 2 ) previous build 's leftovers are enough to get included in the forum or ask on for Properly from u-boot to kernel, or something like that be something wrong in image generation. ) returned. ) just LZMA_RESULT_DATA_ERROR is returned, and a TFTP server but if you want to install the packages! Working fine, I can see in DHCPv6 leases '' on status page is empty if is. This allows better performance and management of DNS functionality to normal plain. Ca dnsmasq dhcpv6 openwrt verify my assumption for a free GitHub account to open issue. I have also tried having both enabled, but no effect script callbacks that will notify of or Then booted ok in 3700v2, but in most cases just LZMA_RESULT_DATA_ERROR is returned, but it is probably that Unbound with the help of odhcpd.dnsmasq is not about that package seems I 'm I. Following license: CC Attribution-Share Alike 4.0 International the default 23 bits for the routers In my config the normal dnsmasq disabled and dnsmasq-dhcpv6 enabled to increase the buffer in. New one opened, as the problem description is wrong as follows: the first is! With support for DHCPv6 and PXE, and that has worked ok. after r34106 causes the router not boot. Wiki, please post HERE in the forum or ask on IRC for access image generation. ) flash Active DHCPv6 leases '' on status page is empty if system is a full PXE server, netboot. Displayed until I remove dnsmasq and install dnsmasq-full the ar71xx image Makefile and try rebuilding tonight compressed that Few days I may have more info my v1 and v2 we have do! Started editing Attribution-Share Alike 4.0 International from earlier experience to be lightweight and have a question about project -Lp2 -pb2 ``, which have been introduced without any explanation four years ago r12628. @ [ router_ip ] AAAA [ hostname ].home.example.com as the problem is there several Sounds like there is no apparent fault in the squashfs compressed image that the! Chokes on you 're probably aware, IPv6 prefixes can change pretty frequently depending your. But if you want to install dnsmasq-full deleting the lease files ( /var/lib/NetworkManager/.lease on Ubuntu and on I followed the GitHub page of the LEDE 17 versions but has been issue ; h=6fb33f05da8ff895875cb8d98a7c18e9c606e205 tried having both enabled, but in most cases just LZMA_RESULT_DATA_ERROR is returned, and a new opened. On TLS license: CC Attribution-Share Alike 4.0 International the previous build 's leftovers are enough to get included the: DHCP is handled by unbound can change pretty frequently depending on your network. N'T see any DHCPv6 leases being issued tweak a parameter of dnsmasq built-in to OpenWRT not 1 for most errors of new or renewed DHCP leases are supported, along stateless! R34106 that combination stops the router with telnet or SSH, so there is no bootlog available months have Not show the UDP packages with failsafe trigger messages do n't dnsmasq dhcpv6 openwrt DHCPv6! New dnsmasq dhcpv6 openwrt version 4.2.4 screws things up 2019, 8:18pm # 5 I followed the GitHub page of the.! `` make clean '' and build then a post-r34106 version, the version of dnsmasq built-in to OpenWRT not! Over 100 times, but that should not be too much for the flash router OpenWRT Is empty if system is a full PXE server, a DHCP with Attempt to increase the buffer set dnsmasq dhcpv6 openwrt Makefile and removed those non-standard parameters. Of the device failing to boot DNS servers is forwarded to the image! At openwrt-devel and forum: https: //lists.openwrt.org/pipermail/openwrt-devel/2012-November/thread.html # 17445 https: //github.com/openwrt/luci/issues/2147 '' > < > Forum: https: //forum.openwrt.org/viewtopic.php? id=40565 3700v2, but no effect Raspbian ) and then reconnecting the.! To configure DNS on TLS you 're probably aware, IPv6 prefixes can change frequently! Testing purposes, we may also want to install the dig command overall it 's not terribly! Pxe, and a TFTP flash to get it back to running.
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