Thank you Hemant.  I appreciate your comments.
 

-----Original Message-----
From: Hemant Singh (shemant) [mailto:[EMAIL PROTECTED]
Sent: Friday, August 10, 2007 6:14 PM
To: Leino, Tammy; ipv6@ietf.org
Subject: RE: prefix length determination for DHCPv6


 
  _____  

From: Leino, Tammy [mailto:[EMAIL PROTECTED] 
Sent: Friday, August 10, 2007 5:56 PM
To: ipv6@ietf.org
Subject: prefix length determination for DHCPv6



Hello, 

In implementing RFC 3315, I see no option or field in the IA_NA option
for a prefix length associated with an assigned IPv6 address.  How does
the client determine the prefix length of the IPv6 address the server is
assigning? 

<hs> One way to to send a Prefix Information Option (PIO) for the
assigned address prefix in RA to the client.  PIO includes prefix
length.

</hs>

Furthermore, in the absence of a configured IPv6 router on the link, can
the client use the DHCPv6 server to find a default gateway out of the
local network?  

<hs> I don't believe so. I'll let the DHCPv6 RFC authors like Ralph
Droms and Bernie Volz verify this one. 

</hs>

Hemant

  If so, what RFC specifies this option?

Any help or referrals to additional RFCs would be much appreciated. 

Best Regards, 
Tammy Leino 

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