We need to agree on requirements before we try to engineer solutions.
Here is what I've heard as requirements:
1) Ability to indicate to a host "DHCP is not available on this link",
with the expectation that the host won't send any DHCP messages
2) Ability for a host to get all desired and available DHCP
configuration with a single DHCP message exchange
- if a host wants HCB, it sends an HCB request (Solicit) and receives
HCB and/or ICB replies
- if a host wants ICB, it sends an ICB request (Information-request)
and receives ICB replies
1 is a requirement in scenarios with limited resources (e.g., wireless),
where polling for DHCP is unacceptable. 2 is a requirement to avoid
timeout delays or other complexity in getting ICB reply when host would
prefer HCB reply.
Comments?
- Ralph
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