> The point is: in the draft, whether support “reachability” is the > distinction between “fixed IP” and “ sustained IP”, but the truth is any type > of IP address can provide “reachability”. So there is no clear dividing line > between “fixed IP” and “ sustained IP” in the definition. That is why the > definition of the IP types is not valid.
"IP address reachability" is about ability to reach the host at a specific "IP address" even when the host changes its point of attachment. You seem to interpret it as if it said "IP reachability" (ability to reach the host using IP protocol), but that's not the case. That term is already defined in the I-D: IP address reachability: The ability to maintain the same IP address for an extended period of time. The IP address stays the same across independent IP sessions, and even in the absence of any IP session. The IP address may be published in a long-term registry (e.g., DNS), and it is made available for serving incoming (e.g., TCP) connections. IP address reachability is essential for mobile hosts to use specific/published IP addresses. >>>>> 3. Regarding the definition of “nomadic IP address”: >>>>> >>>>> “- Nomadic IP Address >>>>> This type of IP address provides neither IP session continuity nor IP >>>>> address reachability. The IP address is obtained from the serving IP >>>>> gateway and it is not maintained across gateway changes. In other >>>>> words, the IP address may be released and replaced by a new IP >>>>> address when the IP gateway changes due to the movement of the mobile >>>>> host.” >>>>> >>>>> Seems this IP address is the IP address that we normally used in most >>>>> cases. If this is the case, why we need a new name for it? >>>>> >>>> >>>> >>>> If you don't name it, how would you refer to it in this context? >>> If the justification of naming IP address as “fixed IP” and “ sustained IP” >>> is not valid, then we may not necessary need a new name for normal IP >>> address. >>> >> >> I and the WT#1 believe that justification is valid. >> If you believe otherwise, please elaborate. > Pls see above comment. > > Dapeng >> >> Alper >> >> >> >>> >>> Dapeng >>>> >>>> >>>> Alper >>>> >>>> >>>>> >>>>> -- >>>>> Dapeng Liu >>>>> >>>>> 在 2015年3月25日 星期三，下午2:02，Alper Yegin 写道： >>>>> >>>>>> Hello Dapeng and Alex, >>>>>> >>>>>> I hope you had a chance to digest our responses to your comments and >>>>>> questions about the API work. >>>>>> If you have any remaining issues, please let us know over the email at >>>>>> your earliest convenience. >>>>>> It'd be good if you can articulate them in detail. >>>>>> >>>>>> >>>>>> Thanks. >>>>>> >>>>>> Alper >>>>> >>>> >>> >> >
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