[lwip-devel] [bug #29072] DHCPDISCOVER doesn't have ciaddr == 0

[Bill Auerbach]

Follow-up Comment #15, bug #29072 (project lwip):

I want to follow up on DHCP:

RFC2131 4.4.2 and 4.4.3 do mention MUST include your IP address in
DHCPDISCOVER (if one is assigned) and that 'the client sends a DHCPINFORM
message'.  There is no MUST on this statement.  If the user has to call
dhcp_inform, we're leaving RFC-specific rules as a user's responsibility.  Is
this right?

And if we have an LLA assigned address and DHCP is continuing to operate then
do we need to ensure that the subsequent DHCPDISCOVER's have the LLA?  RFC
2131 doesn't stipulate a rule on the type of address if the device has one
already but it makes sense to not send a routable address to it.

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