Re: [Softwires] Working group last call for draft-ietf-softwire-map-dhcp-07

Rajiv,

> UmmŠthat doesn¹t cut it either, since softwire node will always have to
> formulate the 32-bit IPv4 address even if < /32 is conveyed.  Also,
> Software interface is not defined anywhere in this document.

what do you mean? a MAP node can be provisioned with an IPv4 prefix too.

cheers,
Ole

> 
> How about the following -
> 
> 
> -- 
> Cheers,
> Rajiv Asati
> Distinguished Engineer, Cisco
> 
> 
> 
> 
> 
> -----Original Message-----
> From: Ian Farrer <ianfarrer@gmx.com>
> Date: Friday, April 25, 2014 at 8:42 AM
> To: Ole Troan <ot@cisco.com>
> Cc: Softwires-wg list <softwires@ietf.org>, Yong Cui
> <cuiyong@tsinghua.edu.cn>
> Subject: Re: [Softwires] Working group last call for
> draft-ietf-softwire-map-dhcp-07
> 
>> Hi Ole,
>> 
>> So the whole paragraph would read:
>> 
>> When receiving the Port Parameters option with an explicit PSID, the
>> client MUST use this explicit PSID in configuring its softwire interface.
>> The Port Parameters option with an explicit PSID MUST be discarded
>> if the softwire node isn't configured with a full IPv4 address (e.g. IPv4
>> prefix).
>> 
>> If so, fine with me.
>> 
>> Cheers,
>> Ian
>> 
>> On 24 Apr 2014, at 10:15, Ole Troan <ot@cisco.com> wrote:
>> 
>>> Ian,
>>> 
>>>> When receiving the Port Parameters option with an explicit PSID, the
>>>> client MUST use this explicit PSID in configuring its softwire
>>>> interface.
>>>> If the client¹s IPv4 address (configured via a separate sub-option)
>>>> is not 32 bit-long, the Port Parameters option MUST be discarded.
>>>> For MAP-E and MAP-T clients, the formula for the address length check
>>>> is "prefix4-len + ea-len = 32² and serves to ensure that  the explicit
>>>> PSID is only applied to configurations with a completely formed IPv4
>>>> address.
>>> 
>>> I don't like the implications that IPv4 address can be != 32 bits. ;-)
>>> 
>>> just simply:
>>> 
>>> The Port Parameters option with an explicit PSID MUST be discarded if
>>> the softwire node isn't configured with a full IPv4 address (e.g. IPv4
>>> prefix).
>>> 
>>> ?
>>> 
>>> cheers,
>>> Ole
>>> 
>> 
>> _______________________________________________
>> Softwires mailing list
>> Softwires@ietf.org
>> https://www.ietf.org/mailman/listinfo/softwires

Re: [Softwires] Working group last call for draft-ietf-softwire-map-dhcp-07

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