Le 2013-11-15 04:24, Ole Troan a écrit :
if optional, we have to think through the corner cases:
- how does a CPE know when to initiate DHCPv4 (or PCP)?
I would propose: when OPTION_S46_IPV4ADDRESS is absent.
DHCPv4 or PCP? Whichever one the CPE wants to try, or even both. We
don't need to signal this.
- can a CPE end up with an IPv4 address provisioned both with
OPTION_S46_IPV4ADDRESS
and DHCPv4 (and PCP)?
Proposal: no. When OPTION_S46_IPV4ADDRESS is present, you shall not do
DHCPv4. PCP is still OK, since it doesn't technically assign an address
to the interface, it merely informs the CPE of an existing stateless
mapping (which may be the same as the one provisioned with
OPTION_S46_IPV4ADDRESS).
- what does the CPE do with IPv4 addresses with longer lifetimes than the
softwire?
Shouldn't happen with my proposal above.
Simon
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