SD-B4 boostrap

[Francis Dupont]

> Using DHCP (vs fully static) this gives:

=> we need a DHCP config/script expert here: I know how to define
options in server and client configs, they are given to dhclient
script with {old_,new}_<s/-/_/ name> but I don't practice enough.

Thanks

Francis Dupont <fdupont at isc.org>

PS: IPv6 options:
 - the default WAN IPv6 router
 - the IPv6 address of the AFTR tunnel end-point
 - the IPv6 address of the DNS cache
 - the IPv6 address of the TSV

IPv4 options:
 - the port range to use

For the last one, do we try to code and experiment the junk ICMP stuff
or we give up on it?