Neither of these is a technical reason to prefer RA to DHCPv6.
Specific technical responses to the points raised:

At 10:20 PM 9/26/2003, Soohong Daniel Park wrote:
RE: draft vienna minutes (sorry about the delay)
>> The biggest technical difference I see between the DHCPv6 
>> (and DHCPv6 lite) and RA approaches is that DHCPv6 is a two 
>> packet exchange for each host vs. the RA approach where a RA 
>> message can be multicast to all hosts on the link.

This apparent efficiency - one packet per link rather than 2 per host -
would come at the cost of the hosts waiting until the next scheduled
multicast RA. Where would the two-packet exchange be more detrimental
than a random delay until DNS is available?

>In addition, mobile node (especially WLAN) prefer RA option to DHCP 
>from ISP experiences because of below reasons
>1) Delay of DHCP request/reply Relay
>2) Risk of centralized DHCP server (fault, failure and etc.)

In the circumstance in which RA would suffice, there is no need for
a "centralized DHCP server" or the relay agent to get traffic to it.
The same router that provides RA could answer a DHCPv6 information
request with the options relevant to DNS.

John

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