Show pagesourceOld revisionsBacklinksBack to top × Table of Contents IPv6 Essentials Backfire WAN interface Static Enable Routing Troubleshooting Link dump IPv6 Essentials This article discussed Backfire 10.03.x and earlier Openwrt releases. For advice targeting Attitude Adjustment 12.09.x, Barrier Breaker 14.07, Chaos Calmer 15.05 and later, please see IPv6. To use IPv6, the following modules may or may not be necessary: IPv6 kernel module (always) IPv6 routing software (always, to configure IPv6 routing) ip6tables kernel modules (optional, if you need an IPv6 firewall) ip6tables command-line tool (optional, to configure the IPv6 firewall) opkg install kmod-ipv6 radvd ip kmod-ip6tables ip6tables Backfire To enable basic IPv6 support in OpenWrt Backfire (10.03), install the IPv6 kernel module using the shell: root@OpenWrt:/# opkg install kmod-ipv6 root@OpenWrt:/# /etc/init.d/network restart Verify by running ifconfig and making sure there are inet6 addresses listed: root@OpenWrt:/# ifconfig eth0 Link encap:Ethernet HWaddr <hwaddr> inet addr:192.168.0.211 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: <globaladdr> Scope:Global inet6 addr: <linklocaladdr Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:110 errors:0 dropped:0 overruns:0 frame:0 TX packets:21 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12632 (12.3 KiB) TX bytes:1966 (1.9 KiB) Interrupt:10 Base address:0x4000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:5 errors:0 dropped:0 overruns:0 frame:0 TX packets:5 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:496 (496.0 B) TX bytes:496 (496.0 B) WAN interface Static This assumes you have static both ipv4 and ipv6 addresses. Add lines option ip6addr 'your:ipv6::address/prefix' option ip6gw 'your:ipv6::gateway'' and modify you dns servers (assuming 1.2.3.4 5.6.7.8 are your ipv4 DNS servers incapable of handling ipv6 traffic) accordingly: option dns '1.2.3.4 5.6.7.8 1:2:3:4:5:: 6:7:8:90:10::' in config interface wan section of your /etc/config/network Enable Routing This is enabled by default on r31572 (and later). — sup 2012/05/16 15:00 To forward packets between interfaces, a kernel-level setting must be enabled. Insert the following line to /etc/sysctl.conf: net.ipv6.conf.all.forwarding=1 and reboot or execute /etc/init.d/sysctl start to commit your changes. To verify, cat /proc/sys/net/ipv6/conf/all/forwarding needs to return 1. Troubleshooting To see if it is working from the router try: ping6 ipv6.google.com If it does not work but ping6 [2a00:1450:8002::93] does, it means that your DNS server is not resolving IPv6 addresses at all: changing it will be necessary. When using a firewall, don't forget to check that IPv6 is enabled (it is by default). In the default zone of /etc/config/firewall, you either must not have line option disable_ipv6 1 or have line option disable_ipv6 0 To verify your problem is not due to a firewall, run ip6tables -F Note that this effectively shuts down your firewall, so use this only for debugging purposes and start your firewall (reboot or /etc/init.d/firewall restart) right after you are done. Link dump http://www.kernel.org/doc/Documentation/networking/ipv6.txt http://lxr.free-electrons.com/source/Documentation/networking/ipv6.txt http://wiki.debian.org/DebianIPv6 This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.OKMore information about cookies Last modified: 2018/09/16 12:49by bobafetthotmail