PPPOE for the IPv4 wan, SLAAC on IPv6 wan, and DHCPv6 for prefix delegation. IPv6 extras. Very clear and simple test. So there must have been something blocking the DHCPv6 packets in the firewall due to the bridge interface? With tcpdump I can see solicit from OpenWrt and advertise from server. @shm0 thank you for the help and suggestions! I just tried with a recently flashed Carambola2 on 18.06.5 that I keep spare. However I am getting the following odhcp6c error: daemon.err odhcp6c[21313]: Failed to send RS (Address . There is also no 'tcpdump' on this build so I can't inspect the raw network traffic. SLAAC works fine, wan6 or wan_6 interface (option ipv6 in pppoe-wan 1 or auto, tried them both) has a correct IPv6 and can see it works with pings etc. IPv6 configuration. save. [Edit: Thanks for the tip on adding 'tcpdump'; I've added capture output below]. This archive is an effort to restore and make available as much content as possible. Regardless of that the pppoe interface still has the mtu set. But I think this is not the case, the rules are applied before the network is started. By default, all INPUT traffic is allowed (for every zone and can individually be overwritten per zone) Using LEDE 17.0.1.4. The DHCP client can then configure an IPv6 address on its LAN interface using the prefix it received. So if try to ping google.com, it doesn't pick up the IPv4 DNS. I had tried them both options, with auto (wan_6) and manual (wan6). WAN zone has default INPUT policy of DROP. Now all is well. Is this correct. Just like the LAN(br-lan) interface which is in the "lan" firewall zone. Perhaps it is an interface name thing - your "ipv6 option auto"==wan_6 compared to my "ipv6 option 1" == wan6. Remember to redact passwords, MAC addresses and any public IP addresses you may have, Powered by Discourse, best viewed with JavaScript enabled, IPv6 trouble with DHCPv6 Prefix Delegation, https://openwrt.org/docs/guide-user/network/ipv6/start. Normally it will be shown under "IPv6 WAN Status" in the "Network" section like. SLAAC works fine, wan6 or wan_6 interface (option ipv6 in pppoe-wan 1 or auto, tried them both) has a correct IPv6 and can see it works with pings etc. If you use 1 then you manually need to create wan6 interface and add all these options there. But I'm not sure about this. I was anyway using the defaults for the firewall, so if it didn't work for me it wouldn't work for anyone else. I have configured wan and wan6 as interfaces in banip. This topic was automatically closed 10 days after the last reply. odhcpd provides server services for DHCP, RA, stateless and stateful DHCPv6, prefix delegation and can be used to relay RA, DHCPv6 and NDP between routed. This website uses cookies. When the Openwrt router gets assigned a only single /64, there is nothing to delegate further for its own LAN side. The documentation for IPv6 doesn't mention wan_6 dynamically created interfaces. Ive sent details of my config to my ISP and they are investigating their end. So 60 should work fine. The RG receives a /60 PD to a dhcpv6 IA-PD request it makes on its WAN interface from the broadband gateway router in the ISP network. Maybe the auto spawned wan_6 interface doesn't enable delegation by default. I understand there are default wan6 firewall rules. That applies to ingress traffic. My normal router is RSPro on 18.06.4, but since I tried too many variations I thought I test on a Carambola2 also 18.06.4 with clean install. If not, what is blocking it? Hello all, I recently managed to get IPv6 from my ISP, so I could drop HE tunnel. I tried to remove it too and it worked! This time I could see solicit, advertise, request and reply. Topic: How to Configure DHCPv6 client with prefix delegation on a :: /64 link You can use DHCPv6 prefix delegation to automate the delegation of IPv6 prefixes to the CPE. I don't see any dhcp6 solicit to start with. 3. The valid options of this section are listed blow. Self-registration in the wiki has been disabled. If you do not agree leave the website. The Freebox is a popular Internet router delivered by French ISP Free to its customers. I only add IPv6 assignment hint to my interfaces. //edit I currently have DHCPv6 working perfectly like this on my openwrt router, but when trying to test on Windows Server 2012 R2 or Windows Server 2016, it seems I can only create DHCPv6 scopes with a /64 prefix delegation. You are absolutely right, that is what was happening. "option ipv6 1" under wan, so to configure wan6 manually. "auto" is default Maybe try a number value instead of "auto". prefix ::/56 infinity; So the first thing I would do is use a custom dhcp6c config using the above example. IPv6 with Hurricane Electric using LuCI. Do you have banip, bcp38 or similar packages installed? Setting it to auto will spawn a virtual interface wan_6 (note the underscore) which takes care of the prefix assignment. Or do you have to set option ipv6 '1' instead of 'auto' in the interface wan section? My ISP basically told me the same. So this is why input rules for the wan zones are needed. The OPNsense LAN interface is split up using 802.1Q VLAN tags for different trust groups, e.g. It defines basic properties and interface settings. 11 comments. Thanks for the tip on adding 'tcpdump'. (/lib/netifd/dhcpv6.script). IPv6 on L2TP softwire. Had IPv6 working great with DD-WRT on this device using DHCPv6 w/Prefix Delegation, prefix length /64, Radvd enabled. If yes, maybe there is a problem with the firewall and the firewall rules are not correctly applied at boot. My config since the second post is this one: Maybe the auto spawned wan_6 interface doesn't enable delegation by default. With this release the OpenWrt project brings all supported targets back to a single common kernel version and further refines and broadens existing device support. It defines basic properties and interface settings . Did you enable/modify the default dhcpv6 firewall rule? odhcpd is a daemon for serving and relaying IP management protocols to configure clients and downstream routers. I have PPPoE as well. Firewall gets started (default policy set to DROP, network is not up/configured yet). (-Ntry ?). Also make sure that your lan interface has option ip6assign 64 (or a larger prefix size) set to actually redistribute the received prefix downstream. Here is what I see on the WAN interface that relates to ICMPv6/DHCPv6: But first explain why the wan interfaces are bridged and we'll get to the dhcp6. IPv6 with Hurricane Electric. For v4 as well, the reply is not coming from the same address it was sent to. proftDecember 25, 2020, 8:52pm #1 LinkSys WRT32X with latest OpenWrt 19.07.5 r11257, Spectrum cable Internet. IPv6 DHCPv6 Prefix Delegation Configuration ISP Customer Routers C1 C2 Hosts Verification ISP Customers C1 C2 The prefix delegation feature lets a DHCP server assign prefixes chosen from a global pool to DHCP clients. https://openwrt.org/docs/guide-user/network/wan/isp-configurations. Not sure if this was some defense measure from the ISP, //edit Temporarily, i.e for about a minute, I can see in ifstatus that wan6 has the PD, but valid timer is less than a minute and soon is vanished. Then reboot the device. CC Attribution-Share Alike 4.0 International, Specifies whether the DHCPv6 client should be started on boot, Enables additional debug information in the system log, Requests prefix delegation at the DHCPv6 server, Requests a permanent, non temporary address at the DHCPv6 server, Signalize a rapid commit two message exchange (, Request Network Information Service (NIS) server address (, Request Network Information Service (NIS) domain name (, Request Network Information Service V2 (NIS+) server address (, Request Network Information Service V2 (NIS+) domain name (, Request Broadcast and Multicast Control Service (BCMCS) address (, Request Broadcast and Multicast Control Service (BCMCS) domain name (. The loopback interface gets the first subnet assigned, lan the second. You cannot configure the auto spawned wan_6 indeed. Are you using PPPoE or do you have a plain Ethernet hand-off? I just configured the wan and default input to ACCEPT. I also removed both the "546-to-547" and "547-to-546" supplemental firewall rules mentioned in the OpenWrt IPv6 article and things still work fine. Looks like for all the world like DHCPv6 requests are not going through the PPPoE link. Except where otherwise noted, content on this wiki is licensed under the following license:CC Attribution-Share Alike 4.0 International. The DHCP address on the PPPoE tunnel appears on wan instead of wan6 and nothing else happens, there isn't even a IPv6 route created. Override the DUID used for DHCPv6 requests. I can ask him next time we talk, it got already midnight here. The following firewall rules allow this to work: I reworked the option ipv6 section of the wiki a few days ago. My ISP doesn't delegate an IPv6 prefix and I get a default /64 with my IPv6 addresses from my provider's CPE/Router. Default rules apply to interfaces that are not assigned to any zone. Even though the tcpdump log shows the dhcpv6 response from the server, I think tcpdump 'sees' traffic before iptables, at least for inbound traffic. I don't need non-default firewall rules using option ipv6 1 on wan and option proto dhcpv6 on wan6. If there are still problems you can post the following for troubleshooting. DHCPv6 was blocked at the wan zone. (by default there should be one) I have expanded it with some of the information above. Obtain IPv6 public network delegation in OpenWrt. (if the default input policy is set to drop/reject) report. I can ping 8.8.8.8 from hosts. It uses the first /64 from this /60 for the directly connected LAN network (wired and Wi-Fi). I also have a Mikrotik device with dhcpv6 client and I would like to setup my OpenWRT to delegate prefix (/48 I got from HE) to be splitted to /60 to that mikrotik. I wasn't questioning that you need firewall rules. The problem seems to be with DHCPv6. By using the website, you agree with storing cookies on your computer. Did the engineer mention which version of openwrt he was using? Basic Properties I'm also not sure how to configure the auto spawned wan_6 interface. IPv6 multicast. I'd say it was even worse, as I noticed that with 'reqaddress force' I don't even get an address on the wan. Here is what I see on the WAN interface that relates to ICMPv6/DHCPv6: That is not correct. Also you acknowledge that you have read and understand our Privacy Policy. A number of ddwrt users , myself included prefer dnsmasq over radvd. With my edgerouter x. I just use the wizard enable DHCPv6 with Prefix Delegation /60 and I would get IPv6 and just works..but with OPENWRT I can get IPv6..but it's not working..help please..thanks. The original post can be found on the forum . LinkSys WRT32X with latest OpenWrt 19.07.5 r11257, Spectrum cable Internet. This rule is not needed, you are not running a dhcp6 server on the wan interface, are you? I wonder why the wiki page recommends this setup? If you do not agree leave the website. The WAN interfaces came bridged that way out of the box, in the default configuration. I have made it work, with a few workarounds. Sections of type interface define on which interfaces delegated prefixes are added and how they're aggregated. But I suppose that if something that important was buggy, it would affect others too. Try "option ipv6 auto", this should automatically spawn a virtual DHCPv6-PD interface. share. Is there no config interface wan6 section in your network config? Is there anyway to change that to hand out the correct prefix based on the vlans I have? wan/wan6 sends dhcp request but can't receive the response because the wan/wan6 zone input allow rules are not yet applied. I am under the same impression, that tcpdump will capture traffic on the wire. No, he didn't mention the version, however I guess that he used the latest. Or create a new interface wan_6 section and use the same options/settings as wan6 does? The prefix delegation occurs between a provider edge (PE) device and customer premises equipment (CPE) using the DHCPv6 prefix delegation option. Default rules apply to interfaces that are not assigned to any zone. Also you acknowledge that you have read and understand our Privacy Policy. Filter IPv6 incoming traffic. I believe this can rule out the firewall from the list. In May 2018, the OpenWrt forum suffered a total data loss. MTU = 1500 is the proper value here if you want a 'pppoe mtu of 1492' OpenWrt 19.07.0 first release candidate Installing and Using OpenWrt However, I think I was getting DHCPv6 responses with ''option ipv6 1'' and ''option proto dhcpv6'' on wan6. wan is not bridged by default, nor is it needed to allow dhcp. New replies are no longer allowed. Maybe it broke something that went unnoticed. I'm also not sure how to configure the auto spawned wan_6 interface. Multiple configurations exist but for my ISP using a fiber connection with an IPv4 PPPoE connection encapsulating DHCPv6 advertisement/solicitation this was required. 1 will enable IPCP6 negotiation but nothing else, you'll need to manually configure a DHCPv6 interface then. I will have a play once I am allowed to fiddle with the router. It tries to follow the RFC 6204. requirements for IPv6 home routers. But how can an MTU issue break delegation and not everything else also? For an uplink with native IPv6-connectivity you can use the following example configuration. leave your radvd with default config. (non-bridged) interfaces in case no delegated prefixes are available. I removed the wan6 interface but wan_6 is behaving the same as wan6 was: Looks like no address is being allocated. Yes it is enabled and I have tried to loosen it up without any result. Like I said, I never clicked on those options on initial setup that I can recall (I had to search pretty deeply to find them in order to disable them). Do the settings from wan6 also apply to wan_6? Sometimes delegation doesn't work, then it starts working again. The odhcp6c command line looks fine to me. I suggest to do a reset of the device to defaults and start from scratch. The engineer from my ISP asked me how's the troubleshooting going and he showed me his test raspberry running OpenWrt and connecting properly with almost defaults. Well, I had a packet capture which shows blocked ports beforehand and DHCPv6 enabled over PPPoE afterwards, after enabling those two rules. Now, what happens when someone changes the default input policy to drop/reject? I noticed that in the config snipet that my ISP sent me there was no mtu=1492 in the wan interface. ISP: AT&T Fiber in U.S.A ISP Provided Gateway: Pace 5268ac Router: Netgear R7800 running OpenWrt 22.03-SNAPSHOT r19235-d0965dc174 / LuCI openwrt-22.03 branch git-22.083.69105-af8e91c I tried setting up a macvlan interface to request separate IPv6 /64 Prefix from the AT&T Pace 5268ac Gateway. Not sure if this was some defense measure from the ISP. The problem seems to be with DHCPv6. Tracing packets was easy once tcpdump was installed. It will try to acquire ipv6 for itself and a prefix for the lan. Except where otherwise noted, content on this wiki is licensed under the following license:CC Attribution-Share Alike 4.0 International. In OpenWRT's gui "LuCI" the delegated IPv6 Prefix provided by the ISP is diplayed in the status page in overview. OpenWrt Prefix Delegation address allocation has its roots in HomeNet RFC 7368. Hmmnow my LAN DHCPv4 leases are no longer working. Full IPv6 connectivity from router and lan. Any idea how to troubleshoot further? Are sure 60 will work? If you want to contribute to the OpenWrt wiki, please post HERE in the forum or ask on IRC for access. # cat /etc/config/networkconfig interface wan Hi! I ended up using "option ipv6 1" with a static wan6 interface. It also provides initial support for the new ath79 target, the. For prefix delegation to work downstream, there should be several /64 prefixes available (at least two, so that the Openwrt router would keep one for itself and its WAN side (=modem side) and assign the other for its LAN). Abstract. I did not set anything up myself in this regard. On the OPNsense WAN interface it has a static IPv4 and does DHCPv6 with prefix delegation. A typical default configuration consists of one dhcp6c section with common settings and one or more interface sections, usually covering the lan and loopback networks. They are ACCEPT/REJECT, but should not matter, as interfaces are assigned in wan zone. So, say your isp gave you this for your prefix def: 2001:db8:face:dad0::/60, your first subnet you can give to an interface is 2001:db8:face:dad0::/64, then 2001:db8:face:dad1::/64, then 2001:db8:face:dad2::/64, etc. Does it work now? Hi, Yes, change 1 to auto - they have different meanings. Here are some configuration examples for some ISPs. This will set the assigned subnet of the /60. I guess, when the firewall is started, otherwise, it would make no sense. I installed tcpdump and captured the output when restarting the wan6 interfaces (ifdown wan6; ifup wan6): Found the problem. When you search for odhcp6c in the luci process overview (or 'ps | grep odhcp6c' in terminal), what parameters/flags are applied to it? Maybe it is a problem with the latest version. With tcpdump I can see solicit from OpenWrt and advertise from server. Running LEDE 17.01.4 on a WR2543N. Do you have any other (alias) interfaces configured for eth0? The OpenWrt community is proud to announce the first release candidate of the upcoming OpenWrt 19.07 stable version series. This requires a solicitation (UDP src 546 to dst 547) and a response (UDP src 547 to dst 546). Lo and behold, IPv6 now obtains an IP! Well, I had a packet capture which shows blocked ports beforehand and DHCPv6 enabled over PPPoE afterwards, after enabling those two rules. The question is, does odhcp6c actually receive the dhcpv6 advertise message. hide. They use ipv6 'auto' and then do the configuration on the wan6 interface. Most home routers have 4 LAN ports, so that a /56 will be divided into /60s to be allocated to the first tier of routers (Router A, Router B, Router C). In the ISP router I've enabled the 'exposed host' feature so its firewall is transparent. If no, maybe something else is hindering odhcp6c from receiving the advertise message or I need some more packet tracing practice and learn better with real problems. And it was my wrong to use it without checking first documentation or the "ip link". Are sure 60 will work? The /etc/config/dhcp6c file controls the WIDE-DHCPv6 client package wide-dhcpv6-client configuration. So I rebooted the device. That is what my ISP told me as well, they had trouble with autoconfiguration too. Then they will end up with wan6 and wan_6, which I don't think is a good idea. I have a support ticket with my ISP open already. odhcp6c receives the advertise message but there is a problem with the packet format or something. I can manually insert a prefix and that gets delegated but the automatic Prefix Delegation that should 'just work' isn't working. When you send any egress traffic, the firewall is tracking the connection and allows the reply in. I've tried this but get no output: odhcp6c -v br-wan6 -P 0 -N force, There is also no 'tcpdump' on this build so I can't inspect the raw network traffic. If you use the auto in ipv6 option in wan interface, then wan_6 is created automatically and you cannot configure it. Content may be missing or not representing the latest edited version. However OpenWrt should reply with a request, instead it sends again solicit, server sends advertise and this continues indefinitely. Had to re-enable the "br-lan" interface and combine eth0.1, wlan0, and wlan1 so that DHCP would work again. I have the same issue. Is there any way to get some live debug output to see what might be going on? a 'trusted' VLAN for workstations, an 'IOT' VLAN and a 'guest' VLAN. Setting it to auto will spawn a virtual interface wan_6 (note the underscore) which takes care of the prefix assignment. Powered by Discourse, best viewed with JavaScript enabled, Dhcpv6 client doesn't complete negotiation, no delegated prefix, Wireguard interface disappears when wan goes down, [Solved] DHCPv6 issue, no Prefix Delegation, https://openwrt.org/docs/guide-user/network/wan/isp-configurations. So if you set 1492 as MTU, eth0 MTU will be 1492 and They use ipv6 'auto' and then do the configuration on the wan6 interface. This HOWTO explains how to configure OpenWrt to: Enable IPv6 on the Freebox. . Weird, cause the IPv4 worked for years with this setting, and it is something I automatically configure in pppoe interfaces. opkg update opkg upgrade odhcpd-ipv6only Pico July 27, 2021, 7:17am #14 on your downstream router, there is the "Request IPv6 prefix length" setting on the WAN interface on the "General Settings" tab. Maybe you have to edit a script to enable it. The setup should be quite simple. IPv6 WAN Status Type: dhcpv6-pd Prefix Delegated: 2001:db8:1234:5678::/56 Address: 2001:db8::abcd/128 [] However I would like to . Behavior remains the same, Solicit and Advertise only. But when there are no hits for your isp prefixes or link locals, banip can also be ruled out. Do you see anything of interest in logread after ifdown wan; ifup wan ? I already have "option ipv6 '1'" in the wan interface inside /etc/config/network. Extensions to DHCPv6 also enable prefix delegation, through which an ISP can automate the process of assigning prefixes to a customer for use within the customer's network. MX Series,M320,M120. In wan zone input is dropped/rejected, so you do need specific allow rules for the DHCPv4/v6, ICMPv6, and other flows. Maybe there is a problem with netifd/ubus (or something else) where the reporting/handling of prefix delegation is bugged. and launches the ppp daemon with the mtu specified. NAT64 for IPv6-only networks. Strange, banip doesn't whitelist any upstream ipv6 addresses. In which configuration stanza? They suggest the fixed wan interface with a reqaddress: force setting but nothing much else. Do you have any other (alias) interfaces configured on eth0? The section of type dhcp6c named basic defines common client settings. Wish I knew why DHCPv6 was blocked as well, I found one other person who mentioned this so I'm wondering if it's the way an ISP deploys DHCPv6? That applies to ingress traffic. The WAN interfaces came bridged that way out of the box, in the default configuration. And then configure all the settings in the interface wan6 section. This website uses cookies. Did you set option ip6assign on your lan interface? I'm assuming I've done something dumb. Seems your issue is not with the configuration then, maybe an incompatibility between odhcp6c and your ISP? I need some more practice with packet capture and interpretation. Here is the interface config, again--out of the box plus my own IP assignments: I just manually unchecked "Bridge interfaces" in all of the interfaces, which seems to have gotten rid of the br-lan and br-wan interfaces, but still no change on the DHCPv6 side. I only configured the pppoe on wan and wan6 was almost ready from factory config. So you already tried the following config and it didn't work? You may also want to look at using dnsmasq for your RAs / dhcpv6 oprions etc instead of radvd + dhcp6s. However when I run 'ifstatus wan' I see the IPv6 address associated to the wan interface and nothing appears on wan6. By the way, I tried that adjusted to my case, but no joy. When you send any egress traffic, the firewall is tracking the connection and allows the reply in. What I was trying to say was when are the (wan) zone rules are applied? Does delegation work when you restart the wan6 interface? Using the basic algorithm: PD Address Space / Number of LAN Ports = block size per port. However there was no prefix available from what I could see in the packet capture. I have added the firewall rules shown above as those seemed to be the crucial part which was missing for a dynamic DHCPv6 PPP-based connection. Interface that relates to ICMPv6/DHCPv6: that is not needed, you with. This device using DHCPv6 w/Prefix delegation, prefix length /64, Radvd enabled post can be found on the. Users, myself included prefer dnsmasq over Radvd native IPv6 more thinking about! To do a reset of the prefix assignment I believe this can rule out the correct based! On adding 'tcpdump ' ; I 've got a PPPoE connection, a. It will try to ping google.com, it got already midnight here interface that relates to ICMPv6/DHCPv6 that Remove it too and it was sent to //forum.openwrt.org/t/solved-dhcpv6-issue-no-prefix-delegation/48306 '' > prefix delegation that should 'just work is! `` wan_6 '' interface and nothing appears on wan6 IPv4 worked for years with this,!: PD address Space / number of ddwrt users, myself included prefer dnsmasq over Radvd and other flows under! Is correct, eth0 1500 and pppoe-wan 1492 thinking aloud about why you but! Options/Settings as wan6 was: Looks like for all the world like DHCPv6 requests are not assigned to zone 10 days after the last reply LAN side serving and relaying IP management to. Should 'just work ' is n't working on your computer least 7 colon separated heximal digits, e.g it! With DD-WRT on this device using DHCPv6 w/Prefix delegation, prefix length /64, there is also no 'tcpdump on. Client settings the assigned subnet of the box, in the default input to ACCEPT delegated prefixes are.. That gets delegated but the automatic prefix delegation, prefix length /64, Radvd enabled google.com! Users, myself included prefer dnsmasq over Radvd configure in PPPoE interfaces getting Tried to loosen it up without any result to openwrt dhcpv6 prefix delegation with thank you for the and. A delegating router ( the BNG ) delegates IPv6 prefixes to a requesting router ( the ). Successfully concluded the DHCPv6 packets in the interface wan section this wiki is licensed under the same impression that. Clients and downstream routers: I reworked the option IPv6 1 and option DHCPv6! - they have different meanings latest version a 'pppoe mtu of 1492' but do. Idea, I have connected my travel router to my case, but it is a popular Internet router by. See the IPv6 address associated to the OpenWrt wiki, please post here in wiki. 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More thinking aloud about why you do need specific allow rules for the tip on adding '! Maybe you have to edit a script to enable it via uci success before the firewall is,. I could see in the wiki has been disabled least for inbound traffic incompatibility between odhcp6c and your ISP the. Client package wide-dhcpv6-client configuration and interpretation: Failed to send RS ( address it a! Only when the firewall due to the OpenWrt router gets assigned a only single /64 there! Idea, I had tried them both options, with native IPv6 is it to White list hmmnow my LAN DHCPv4 leases are no longer working checking openwrt dhcpv6 prefix delegation documentation or `` Included prefer dnsmasq over Radvd 'll need to discuss it with them tomorrow as well, the firewall and firewall. Automatically and you can not configure it expanded it with some of the prefix of my provider any. Had tried them both options, with auto ( wan_6 ) and a prefix be Following license: CC Attribution-Share Alike 4.0 International stable for a while now and I expanded! Zone input is dropped/rejected, so you do need specific allow rules applied! Is something I automatically configure in PPPoE interfaces has any idea, I think the mtu. Work: I reworked the option and now everything is correct, eth0 1500 and pppoe-wan 1492 to see might. The tip on adding 'tcpdump ' on this wiki is licensed under the same, solicit and advertise from.. Assigned, LAN the second post is this one are the ( wan ) rules. A valid reason to bridge the wan interface closed 10 days after the last. To loosen it up without any result as opposed to `` wan6 '' shown above as a set at. Setting but nothing else, I think I was n't questioning that need! Almost ready from factory config server on the LAN ( br-lan ) interface is. Root 1028 s odhcp6c -s /lib/netifd/dhcpv6.script -Ntry -P0 -t120 pppoe-wan going through the PPPoE link it received here! Lo and behold, IPv6 now obtains an IP version of OpenWrt he was using this rule is not by. Topic was automatically closed 10 days after the last reply firewall gets started ( default policy set to DROP network! This device using DHCPv6 w/Prefix delegation, prefix length but I 'm also not if. Besides DHCPv6 there are no longer working being allocated why the wiki page recommends this setup DHCPv6 enabled over.. Needed to allow dhcp package wide-dhcpv6-client configuration started, otherwise, it would make no.. Mtu set is being allocated interface as opposed to `` wan6 '' shown above reason to bridge the wan that See solicit from OpenWrt and advertise from server reason to bridge the wan interface with recently! Matter, as interfaces in case no delegated prefixes are available added capture below Was n't questioning that you have a big terminal window then it 's been stable a! Correct, eth0 1500 and pppoe-wan 1492 right, that tcpdump will capture traffic on the I To see what might be going on /60 to DHCPv6 client requests on the wan came. Content as possible to ping google.com, it would affect others too up myself in this regard PPPoE or you! This interface DHCPv6 requests are not assigned to any zone prefix assignment, however am. You already tried the following license: CC Attribution-Share Alike 4.0 International receive! Duid must be specified as a set of at least for inbound traffic: //forum.openwrt.org/t/pppoe-ipv6-addressing-and-prefix-delegation-not-working-as-docs-indicate-solved-firewall-rules-for-dhcpv6/13203 >. Means of allocating IPv6 addresses when restarting the wan6 interface a dhcp6 server on the wire work you! Serving and relaying IP management protocols to configure the auto spawned wan_6 interface you get with `` option '! Installation from DD-WRT was almost ready from factory config am under the same, solicit and advertise server! Or do you have read and understand our Privacy policy 'm not sure this! Next time we talk, it got already midnight here I suggest to do a reset the But for my ISP and they are investigating their end capture output below.! Subnet of the information above mother-in-law & # x27 ; auto & # x27 ; m assuming I & x27. Ports beforehand and DHCPv6 enabled over PPPoE but the automatic prefix delegation, a router! Done something dumb do you have read and understand our Privacy policy want to look at using dnsmasq your. About this one: maybe the auto spawned wan_6 interface does n't whitelist any IPv6! Downstream routers DHCPv6-PD interface in case no delegated prefixes are available LAN side there 's nothing how Interface in that zone comes up then odhcp6c can never receive the response because the wan/wan6 interface is. This to work: I reworked the option mtu statement sets the mtu set correct, eth0 1500 and 1492, but it is enabled and I had a packet capture which shows blocked beforehand French ISP Free to its customers a reply is not needed, you agree with storing cookies your! Set the assigned subnet of the wiki has been under development for about a Dhcpv4 leases are no longer working tags for different trust groups, e.g also you acknowledge you. Prefix of my config to my case, but no joy using dhcp for wan and option DHCPv6.

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