if I am needed

[Francis Dupont]

> wake me up at the quality inn hotel, (831) 427-1616 room 103

=> we got it to work, some comments about the WNDR3800 sd-b4
(we jumped the WNDR3700v2 but it should have the same problems):
 - I tried to debug the dhclient6 init script:
  * dhclient -6 requires '-D LL' to build a repeatable and
   easy to predict DUID in the LL format (vs LLT format, which
   is the MAC address + time stamp)

  * for an unknown reason the MAC address is one less than written
   on the box and returned by 'ip addr' ? Can't say why...
   (the answer is in the code in dhclient which computes the DUID LL)

  * uci fails to get the wan interface (BTW with B4 there are two
   wan interfaces, one (tun0) for IPv4, one (ge00) for IPv6

 - the iptables is a mess, I had to flush it (-F -X) and to
   put the default policy for FORWARD

 - default dnsmasq arguments didn't work, I relaunched without any
   argument to fix it

but it finished by working before the end of demo...

I fixed the DHCPv6 server entries (required the LL prefix (03:01?)
and -1 on the last byte. (PS: on the SD-AFTR).

I runned the PCP + incoming connection from the Internet on the laptop
SD-B4 but it should work on the WNDR SD-B4 too.

I didn't try the ICMP stuff, in fact with DHCPv4 over IPv6 it was the
only part we skipped. In particular the SD-AFTR failover works great.

Regards

Francis Dupont <fdupont at isc.org>