Dnsmasq, however does provide such callbacks making automatic updating of firewall rules a relative breeze. This wasn't an issue on any of the LEDE 17 versions but has been an issue on the OpenWrt 18 versions. This allows better performance and management of DNS functionality on your local network. There are my options to dnsmasq that aren't available through the standard configuration files. CC Attribution-Share Alike 4.0 International. OpenWrt uses dnsmasq and odhcpd to serve DNS / DHCP and DHCPv6 by default. I have built today several builds with identical config. Based on the line number 547, the error is probably coming quite from the end In particular, on my router both DNS and DHCP are handled by unbound. Now we need to edit some of the OpenWRT configuration files. 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. The firmware gets built normally and there is no apparent fault in the build process. 1537839170 e0:4f:43:d9:e6:d7 192.168.3.186 * First, we have to turn off odhcpd and tweak a parameter of dnsmasq. 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. 1537839435 d0:13:fd:64:d9:db 192.168.1.114 * 01:d0:13:fd:64:d9:db (Alternative reason might be something wrong in image generation.). There are times when you need to filter out what some hosts in the network can or cannot do. I stopped the u-boot boot process with keyboard and tried a few commands in u-boot. option ra 'server' Dnsmasq serves as a downstream caching DNS server advertising itself to DHCP clients. The PXE system is a full PXE server, supporting netboot menus and multiple architecture support. The script supports both IPv4 and IPv6 rules. Thank you for leading me to discover the solution! returned, and that is 1. 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. (diffconfig added to the ticket). When I receive the serial port converter, I will test my 3700v1 and see the boot log what it says. dnsmasq. (see below from lzma help file.). For this setup, the version of dnsmasq built-in to OpenWRT does not have DNS functionality. A new Flyspray task has been opened. If you want to contribute to the OpenWrt wiki, please post HERE in the forum or ask on IRC for access. /sbin/hotplug-call dhcp executes scripts in the /etc/hotplug.d/dhcp folder. option leasefile '/tmp/dhcp.leases' So no clue from the error number. Start with editing /etc/config/dhcp to add the following tag definitions in the file (tag identifier can be any string, I chose these for clarity purposes): These definitions stop the DHCP server from providing gateway and/or DNS information to the hosts they are applied to. This how-to provides most common dnsmasq and odhcpd tuning scenarios adapted for OpenWrt. 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 . 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. When you have a router running OpenWRT this can be done at the firewall level. Once this is all set up, you should be able to dig @[router_ip] AAAA [hostname].home.example.com. User who did this - bogi788 (bogi788) Attached to Project - OpenWrt/LEDE Project Summary - dnsmasq(-dhcpv6) Task Type - Bug Report Category - Base system Status - Unconfirmed Assigned To - Operating System - All Severity - Low Priority - Very Low Reported Version - Trunk Due in Version . Instead, we'll want to install dnsmasq-full opkg update && opkg install dnsmasq-full https://forum.openwrt.org/viewtopic.php?id=40565. It seems I'm lying, I don't see any DHCPv6 leases. of the source file, possibly from this function: That would suggest that the error is related to the structure of the The dnsmasq DHCPv6 server provides the same set of features as the DHCPv4 server, and in addition, it includes router advertisements and a neat feature which allows nameing for clients which use DHCPv4 and stateless autoconfiguration only for IPv6 configuration. dnsmasq can also be configured to cache DNS queries for improved DNS lookup speeds to previously visited sites. Please provide a complete bootlog. My last build 34174 runs ok in 3700v2, but does not boot in 3700v1. At least my ar71xx/wndr3700 does not. Dictionary size will stay at the default 23 bits for the other routers. Alternatively, the new Virtualbox version 4.2.4 screws things up. option domain 'lan' You should review the, r34106 (stamp files for build variants) broke dnsmasq package's dhcpv6 variant. dnsmasq's dhcpv6 variant got introduced by r32764. Configure dnsmasq to provide DHCP and DNS Bonus: Dynamic IPv6 firewall rules Install Packages The first step is to install the required packages. But I'm sure I see DHCPv6 leases being issued in the log. 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! And that booting difference sounds strange. The DHCP subsystem supports DHCPv4, DHCPv6, BOOTP and PXE. config dnsmasq I was unable to connect to the router with telnet or SSH, so there is no bootlog available. 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. privacy statement. 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. THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. Could a bad flash chip be a reason? Changeset r34106 (isolating stamp files for build variants) has apparently broken dnsmasq package's dhcpv6 variant. You signed in with another tab or window. I have flashed both routers over 100 times, but that should not be too much for the flash chip, should it? Yup, removing odhcpd-ipv6only has corrected the issue. The firmware gets built normally and there is no apparent fault in the build process. And that has worked ok. After r34106 that combination stops the router from booting. As my kernel is 13.994 x 64k, no buffer gets actually added as (13.994 gets rounded down to 13, then 1 is added, and 14.00 is the final about of 64k blocks used.). SQUASHFS error: squashfs_readdir: read_block I built 34036 and 34066 fully from scratch and they both worked both in v1 and v2. option resolvfile '/tmp/resolv.conf.auto' Except where otherwise noted, content on this wiki is licensed under the following license:CC Attribution-Share Alike 4.0 International. But the router does not start after the flash. option ra_management '1' 1537869657 78:d2:94:4f:ec:21 192.168.1.126 * * At the first glance it looks like the lib_bootstarp/lzmadecode.c basicly I just didn't have to do this with LEDE V17. 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. dhcp: 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). ), overall it's not a terribly painful process. Also, in case it matters, unbound is working as a fully Details are below. option ignore '1', config dhcp 'guest' I also experimented adding a few kilobytes to the size calculation, but no effect. opkg_install_cmd: Cannot install package dnsmasq-dhcpv6. Both static and dynamic DHCP leases are supported, along with stateless mode in DHCPv6. 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. 1537857704 00:26:2d:00:84:5b 192.168.1.100 01:00:26:2d:00:84:5b If you do not agree leave the website. option dhcpv6 'server' 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. option start '100' Both versions worked in both of my routers. several conflicting dnsmasq variants. Every received DNS query not currently in cache is forwarded to the upstream DNS servers. package: dnsmasq-full Name: dnsmasq-full Version: 2.85-8 Description: It is intended to provide coupled DNS and DHCP service to a LAN.\\ \\ This is a fully configurable variant with DHCPv4, DHCPv6, DNSSEC, Authoritative DNS\\ and IPset, Conntrack support & NO_ID enabled by default.\\ Installed size: 178kB Dependencies: Restart your dnsmasq server to activate the new settings and verify that your clients successfully receieve IPv6 addresses. "Active DHCPv6 Leases" on status page is empty if system is running dnsmasq-full. It looks like including dnsmasq-dhcpv6 variant after r34106 causes the router not to boot up. https://lists.openwrt.org/pipermail/openwrt-devel/2012-November/thread.html#17445 Powered by Trac 1.0.1 1537868184 00:e0:4c:36:e9:17 192.168.1.112 * (I made the last build without clean, as it was supposed change just the image creation), Read about the lzma/xz memory consumption here: option interface 'wan' When the router "did not boot", it started the boot process but then got stuck in the middle, just the power led slowly blinking. option readethers '1' option limit '150' package: dnsmasq-dhcpv6 Name: dnsmasq-dhcpv6 Version: 2.85-8 Description: It is intended to provide coupled DNS and DHCP service to a LAN.\\ \\ This is a variant with DHCPv6 support\\ \\ Installed size: 157kB Dependencies: libc, libubus20210630 Categories: base-system Repositories: base Architectures: And wireshark does not show the UDP packages with failsafe trigger messages. dnsmasq-dhcpv6 is visible in menuconfig next to normal plain dnsmasq. For this setup, the version of dnsmasq built-in to OpenWRT does not have DNS functionality. option ra_management '1', dhcp.leases: One supporting factor for this line of reasoning is that there was one firmware version, the first with which I noticed this problem, where I had succesfully flashed my 3700v1, but that then failed in a 3700v2, although it had been built on the same compilation run. I had to de-brick it with a TFTP flash to get it back to running order. 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. ), several build logs can be found in http://koti.welho.com/hnyman1/Openwrt/trunk_error_does_not_boot/. option localise_queries '1' And a new 34085 then booted ok in both routers. The problem is there for several WNDR3700/3800 users, but it is probably something related to invalid lzma compressed images instead of package stamps. option dnsseccheckunsigned '1', config dhcp 'lan' Note: DHCP is handled by unbound with the help of odhcpd.dnsmasq is not used (or even installed for that matter). option limit '150' 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. By using the website, you agree with storing cookies on your computer. So that some bit does not get toggled by flashing any more, and it randomly depends on the firmware image, if the bit is right. This wasn't an issue on any of the LEDE 17 versions but has been an issue on the OpenWrt 18 versions. option interface 'lan' I see DHCPv6 leases displayed until I remove dnsmasq and install dnsmasq-full. It includes proxy-mode, where the PXE system co-operates with another DHCP server. 1537853321 18:b4:30:a8:a6:df 192.168.3.245 * * But if youre not much into advanced configuration and just want to completely block out some network hosts from reaching the internet (and hence phoning home) then its a lot simpler to do this directly from the DHCP and simply leave them without a DNS and gateway configuration. list dhcp_option '252,"\n"', config dhcp 'wan' 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 1537854905 4c:605d:8e:e3 192.168.1.116 * * 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. 1537856699 70:5a:b6:a7:51:9f 192.168.1.230 3 01:70:5a:b6:a7:51:9f option dnssec '1' 1537853529 ac:22:0b:e2:8d:8b 192.168.1.229 -cca1d8d466379174 01:ac:22:0b:e2:8d:8b 1537861626 0c:b2:b7:45:6c:b4 192.168.3.172 -0B3E 01:0c:b2:b7:45:6c:b4 option interface 'guest' Visit the Trac open source project athttp://trac.edgewall.com/, This ticket has been modified since you started editing. option rebind_localhost '1' Below is the serial console log of a successful recovery TFTP transfer. But if you "make clean" and build then a post-r34106 version, the build succeeds but is not bootable. It looks like including dnsmasq-dhcpv6 variant after r34106 causes the router not to boot up. Full bootlog again includding the few first lines, and my correct name Additional info: $(STAGING_DIR_HOST)/bin/lzma e $(1) -lc1 -lp2 -pb2 -d20 $(2). lzma_fs returned unexpected result 0x1 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). 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. The versions are built during the same build run, so they should be as identical as possible. Instead, we'll want to install dnsmasq-full, For testing purposes, we may also want to install the dig command. 1537867042 c4:1c:ff:df:2a:6b 192.168.1.227 * 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. http://nbd.name/gitweb.cgi?p=openwrt.git;a=commitdiff;h=6fb33f05da8ff895875cb8d98a7c18e9c606e205. Mon Sep 24 09:06:59 2018 daemon.warn odhcpd[1529]: DHCPV6 RENEW IA_NA from 00010001232af947bcaec50ff2b3 on br-lan: ok 2601:601:9280:2081::102/128. Then I built 34085 and it failed in both routers. Is there any good way to check the flash quality? I have managed to set up DNS on my router without the need for static IP addresses using dnsmasq as the main DHCP client. E-mail address and user name can be saved in the Preferences. This ticket should maybe closed as invalid and a new one opened, as the problem description is wrong. WNDR3700-trunk-r34105-2012-11-11-1841.diffconfig. Let's add one: This script simply does a sanity check to ensure we're updating the firewall rule to the correct host by matching the hostname and the DUID. Sections 1537850779 04:5d:4b:49:16:32 192.168.1.171 * 01:04:5d:4b:49:16:32 During the past few months I have had in my config the normal dnsmasq disabled and dnsmasq-dhcpv6 enabled. Anything better? I have been unable to determine a clear reason to create failing/booting images, and I have used the vanilla dnsmasq today (with no dhcpv6 support). 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). Well occasionally send you account related emails. It was a bit of a process and quite a steep learning curve, so I figured I'd document what I did here on the forums in case anybody else finds themselves wanting this feature. option leasetime '12h' https://dev.openwrt.org/browser/trunk/target/linux/ar71xx/image/Makefile#L571. Already on GitHub? I have uploaded the build r34174-2012-11-12-2328 to http://koti.welho.com/hnyman1/Openwrt/trunk_error_does_not_boot/ , so if somebody wants to test the build with a v1, please do so. Some of the builds have worked, some have not, even regarding version 34105. My kernel size is currently quite at a 64 kB border (917117, 916862 B = 13,994 x 64kB), and I am thinking if it is possible that the estimation is a few bytes short and the final kernel image just crosses the border by a few bytes and thus the kernel bootline gets set wrong. Otherwise the system is working fine, I can see in DHCPv6 leases being issued. 1537864168 b8:27:eb:e6:08:9b 192.168.1.106 * As you're probably aware, IPv6 prefixes can change pretty frequently depending on your ISP. It might be theoretically possible, that the parameter create a lzma version that the u-boot chokes on. lucenera January 14, 2019, 8:18pm #5 I followed the Github page of the Stubby package to configure DNS on TLS. let 'kk = (((s + c) / (64 * 1024) + 1) * 64)'; which sets the allocated kernel size. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Self-registration in the wiki has been disabled. 1537871330 64:51:06:69:ba:09 192.168.1.101 01:64:51:06:69:ba:09 This script does the work of locating and changing the firewall rule. 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 1537868050 c0:c1:c0:4b:ca:b9 192.168.1.103 * I am thinking about alternative explanations, and the first that comes into mind is the current ar71xx/wndr3700 kernel size optimization in the build process. 1537866076 8c:3b:ad:e3:3c:f8 192.168.1.107 01:8c:3b:ad:e3:3c:f8 ERROR: LzmaDecode.c, 547 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. Jow is probably right that it is not about that package. The resolution will be deleted. The key part is probably: I earlier thought that it might be faulty flash memory, but at the first glance that does not sound like that, as checksum is right, but lzma_fs returns error regarding squashfs. 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. I have also tried having both enabled, but that does not work either. option domainneeded '1' ### SQUASHFS loading 'image/uImage' to 0x80800000 Changeset r34106 (isolating stamp files for build variants) has apparently broken dnsmasq package's dhcpv6 variant. # 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 The steps to get this working are as follows: The first step is to install the required packages. 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). option authoritative '1' Next status will be 'reopened'. errors are returned, but in most cases just LZMA_RESULT_DATA_ERROR is Hang on, odhcpd? (according to juhosg, this will probably be later fixed in AA, after the rc1 images have been built.). I see DHCPv6 leases displayed until I remove "dnsmasq" and install "dnsmasq-full". If the prefix were to change, your existing firewall port forwards for IPv6 will be crippled until you manually re-set them at some point. Looks like the reason was indeed the lzma compression parameters. I fetched wndr3800 sources from Netgear and extracted the u-boot part here: So, we need to add some sections to the /etc/dnsmasq.conf file that contains the remainder of the configuration. The problem with odhcpd is that it doesn't provide script callbacks that will notify of new or renewed DHCP leases. option dhcpv6 'server' I threw that away so I can't verify my assumption. ### SQUASHFS LOAD ERROR<0> for image! I then modified the ar71xx image makefile and removed those non-standard compression parameters from the lzma command line. option leasetime '12h' I have already built newest trunk 34245 and it works both in my v1 and v2 routers. 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. By clicking Sign up for GitHub, you agree to our terms of service and I really fail to see how a broken dnsmasq-dhcpv6 would prevent the router from booting. let 'kk = (((s + c + 4096) / (64 * 1024) + 1) * 64)'; It looks like it is not the kernel size. I guess that router somehow does not boot properly from u-boot to kernel, or something like that. http://koti.welho.com/hnyman1/Openwrt/trunk_error_does_not_boot/Netgear3800_uboot.zip. It works but it's not the most graceful solution. My whole purpose of setting up Dnsmasq rather than odhcpd to begin with was because I was trying to create dynamic IPv6 firewall rules. Otherwise the system is working fine, I can see in DHCPv6 leases being issued. 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. But the router does not start after the flash. The boot process after that looks quite similar to the failing ones until the point where squashfs image is successfully decompressed to 0x80800000 and then control gets transferred to Linux kernel: Somehow I find it hard to believe that is a flash failure. It would be helpful if you could attach serial and capture the bootlog of the device failing to boot. option rebind_protection '1' One idea is the lzma parameters " -lc1 -lp2 -pb2 ", which have been introduced without any explanation four years ago with r12628. The strange thing is that I can flash again those firmware images that I know from earlier experience to be working. By Edgewall Software. Windows doesn't seem to be affected. Restart your dnsmasq server to activate the new settings and verify that your clients successfully receieve IPv6 addresses. http://linux.die.net/man/1/lzma Apparently the previous build's leftovers are enough to get included in the final firmware. 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. There are several places where 1537871268 00:e0:4c:36:3c:73 192.168.1.127 * I will attempt to increase the buffer set in Makefile and try rebuilding tonight. option expandhosts '1' dnsmasq provides a DNS server, a DHCP server with support for DHCPv6 and PXE, and a TFTP server. Somehow it sounds like there is an illegal structure in the squashfs compressed image that breaks the decompression, or something like that. Looks like badly confused build config in .config, as you are trying to install e.g. 1537854386 bc:ae:c5:0f:f2:b3 192.168.1.102 5 01:bc:ae:c5:0f:f2:b3 option local '/lan/' This website uses cookies. 4 # This is free software, licensed under the GNU General Public License v2. Sign in This issue is probably due to my router handling DNS/DHCP different than the standard openWrt setup. Can you please attach the output of scripts/diffconfig.sh of a config that triggers this problem? See discussion at openwrt-devel and forum: to your account. Hopefully that will give some insights. I will rebuild 34085 once again from scratch and retry. To serve custom information instead include the IP addresses in the options definition, for example: Then create mac-specific host configurations and add the tag attributes to the hosts that should receive the custom configuration: Save changes to the file (via SSH/SCP) and then reload and use Save & Apply on OpenWRTs DHCP and DNS page to make the configuration changes apply. option localservice '1' option nonwildcard '1' 1537850651 00:18:39:43:3b:49 192.168.1.104 01:00:18:39:43:3b:49 Regards, Jim Also you acknowledge that you have read and understand our Privacy Policy. generated lzma encoded file. Now I'm thinking when I remove dnsmasq I also need to remove odhcpd-ipv6only before installing dnsmasq-full. 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. 1537832014 b4:f7:a1:be:e3:00 192.168.3.115 * 01:b4:f7:a1:be:e3:00 After r29406 an "estimation version" of the kernel is built first, its size is assessed and then the final kernel is built with the size set by the estimation. option start '100' If nobody suggests anything better, I will continue to live with this change: Fixed in trunk with r34248 which applies the 20-bit dictionary size option "-d20" to just wndr3700/3800 instead of all ar71xx images. Have a question about this project? By default, there are no scripts here. returns 0 for success and 1 for most errors. 1537871020 a0:6a:44:52:89:03 192.168.1.118 * 01:a0:6a:44:52:89:03 I ordered a serial-USB converter, so in a few days I may have more info. Then, it calls a script that I've stored in /usr/sbin/update-uci-firewall-rule. It is designed to be lightweight and have a small footprint, suitable for resource constrained routers and firewalls. Reading whole flash contents from /dev/mtd and comparing to the original image? I have now a serial to USB converter and the bootlog from serial console is as below.
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