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 -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------