TID: FMail-W32 2.1.3.7-B20170919   
   TZUTC: 0200   
   CHRS: CP850 2   
   PID: GED+W32 1.1.5-b20170303   
   MSGID: 2:280/5555 5d494c93   
   From  Fidonews #32 2011:   
      
                      A SECOND LIFE FOR THE LINKSYS PArt 2   
                      By Michiel van der Vlist, 2:280/5555   
      
      
   Last week I described how to set up a 6in4 tunnel on the Linksys   
   WRT54GL. This article describes how to provide IPv6 connectivity   
   to your machines connected to the LAN.   
      
   First you have to enable IPv6 on your systems if it isn't already. Go   
   to the command line and type "Ipconfig" for Windows or "ifconfig" for   
   *nix. If you see an address that starts with fe80:: then IPv6 is ena-   
   bled. That address is a so called link local address.   
      
   Windows XP SP2/3 is IPv6 capable, but it is not enabled by default.   
   From an account with administrator rights type "IPV6 INSTALL" on the   
   command line to enable it.   
      
   IPv6 has a mechanism called "router advertisements". A router announces   
   itself on the local link by regularly sending out router advertisements   
   to all nodes on the local link. A node that needs router information   
   can also send out a router sollicitaion message to have all routers on   
   the link send out a router advertisement message instead of waiting for   
   the next broadcast.   
      
   The router adverisement contains, among other thing, the subnet prefix   
   to be used by the nodes on the local link. There is a mechanism called   
   "prefix delegation" to let a router be assigned a subnet from its   
   uplink, but this mechanism is not supported by the he.net and sixxs   
   tunnels and AFAIK, openwrt does not support it either, so the subnet   
   has to be configured manually. The he.net tunnels come with a /64   
   subnet by default, sixxs gives you a /48 on request. Note that the   
   subnet address and the tunnel address are not the same. The tunnel   
   address also uses a full /64, but that can not be used a a subnet.   
      
   Use cut and paste for the addresses if you can. a typo is easily made   
   you will have a hard time finding the error if it does not work.   
      
   Go to the file /etc/config/network and find the following section:   
      
   [code]   
      
   #### LAN configuration   
   config interface lan   
           option type     bridge   
           option ifname   "eth0.0"   
           option proto    static   
           option ipaddr   192.168.1.1   
           option netmask  255.255.255.0   
   [/code]   
      
   Add the following lines:   
      
   [code]   
      
   # add the subnet prefix to the LAN interface   
           option ip6addr  2001:470:1f15:1117::1/64   
   [code]   
      
   Do not ommit the /64, it won't work without it. For the address use the   
   one that the tunnel broker gave you as the subnet prefix. If you have   
   a /48 use any /64 within the /48 range.   
      
   We also need to tell the firewall to forward packets from the LAN to   
   the tunnel. Add the following section to /etc/config/firewall   
      
   [code]   
      
   # Forwarding van lan naar de he.net tunnel   
      
   config  forwarding   
           option  src     lan   
           option  dst     henet   
   [/code]   
      
      
   That completes the basic setup to have all your machines on the LAN   
   access the IPv6 internet. They should all get a at least one global   
   IPv6 address and you should be able to make outgoing IPv6 connections.   
      
   Surf to http://www.kame.net. If you see the turtke dance, you have   
   IPv6. Surf to http://www.test-ipv6.com to see more details about your   
   IPv6 connection. That site BTW, is run by a former FideNet sysop:   
   Jason Fesler, the author of GIGO.   
      
   Other useful test sites are ipv6-test.com and ipv6-speedtest.net.   
      
      
   This completes the setup for client use. The OpenWrt firewall - as   
   any decent firewall should - blocks all unsolicited incoming packets   
   by default. If you wish to run IPv6 capable servers on any of your   
   systems, you have to open the required ports and enable IPv6 forwar-   
   ding. I have not experimented with that yet. You can find the infor-   
   mation on the the official openwrt site, where you can find almost all   
   of the information on how to play with your new toy. http://openwrt.org   
      
   Enjoy.   
      
      
   ¸ Michiel van der Vlist, all rights reserved.   
   Permission to publish in the FIDONEWS file scho and the FIDONEWS   
   discussion echo as originating from 2:2/2   
      
   ---   
    * Origin: he.net certified sage (2:280/5555)   
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