The follow up question is:
Have host generally implemented the check of the A bit in RA and has this been
tested at UNH/TAHI/ETSI/...
- Alain.
-----Original Message-----
From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
To: [email protected] <[email protected]>
Sent: Mon Oct 31 14:17:17 2005
Subject: Question about precluding use of autonomous address-configuration
Suppose the nodes on a link are to be restricted to the use of addresses
assigned through DHCP, and precluded from the use of autonomous address-
configuration.
It seems there are two ways to accomplish this goal:
1) Don't include any prefixes in router advertisements
2) Include the prefixes assigned to the link in router advertisements,
with the A (autonomous address-configuration) flag set to FALSE
There may be a subtle problem with (2): the text in RFC 2462 does not
include RFC 2119 words absolutely precluding the use of autonomous
address-configuration:
a) If the Autonomous flag is not set, silently ignore the
Prefix Information
option.
Note the lack of "MUST" before "silently ignore".
Is there a reason to prefer one of these two ways of precluding the use
of autonomous address-configuration? Is there a problem with using
technique (1)?
- Ralph
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