Hi
I have a question regarding IPv6 stateless address autoconfiguration in
combination with dial-on-demand network access.
Suppose I have a network configured using only stateless address
autoconfiguration. At this point all hosts have a link local address but
nothing with wider scope. When a connection to the outside world is opened
the gateway node starts to receive router advertisements from our ISP with
a globally routable prefix. This prefix is distributed to the hosts on the
local network so that they can form complete, global IP addresses.
How does one implement dial-on-demand in such a setting? The gateway for
the network needs an outbound packet to trigger the dialing process, but at
that time the emitting host does not have a global address to select as the
packet source address. Hence the packet cannot be sent.
Is there any way to avoid having to rewrite the first outbound packets in
the gateway? If it is not acceptable to open the connection when no traffic
is being sent and if we cannot assume that everybody uses DNS I don't
really see how it could be done.
Best regards
Morten Heiberg
--
Morten Heiberg Rasmussen System Developer, M. Sc.
Ericsson Telebit A/S Tel: +45 86 28 81 76
Fabrikvej 11 Fax: +45 86 28 81 86
DK-8260 Viby J, Denmark E-mail: [EMAIL PROTECTED]
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