base.txt		issue62.txt
Skipping to change at page 24, line 12:
entry. This allows nodes that have large difference in their		entry. This allows nodes that have large difference in their
clocks to still communicate with each other, by exchanging NS/NA		clocks to still communicate with each other, by exchanging NS/NA
pairs.		pairs.
o When a message is received from a known peer, i.e., one that		o When a message is received from a known peer, i.e., one that
already has an entry in the cache, the time stamp is checked		already has an entry in the cache, the time stamp is checked
against the previously received SEND message:		against the previously received SEND message:
TSnew + fuzz > TSlast + (RDnew - RDlast) x (1 - drift) - fuzz		TSnew + fuzz > TSlast + (RDnew - RDlast) x (1 - drift) - fuzz
o If TSnew < TSlast, which is possible if packets arrive rapidly and		If this does not hold, the message SHOULD be silently discarded.
out of order, TSlast MUST NOT be updated, i.e., the stored TSlast
for a given node MUST NOT ever decrease. Otherwise TSlast SHOULD		If it does hold, the message is processed. However, if TSnew <
be updated. Independent of whether TSlast is updated or not,		TSlast, which is possible if packets arrive rapidly and out of
RDlast is updated in any case.		order, TSlast MUST NOT be updated, i.e., the stored TSlast for a
		given node MUST NOT ever decrease. Otherwise TSlast and RDlast
		SHOULD be updated.
6. Authorization Delegation Discovery		6. Authorization Delegation Discovery
Several protocols (NDP included) allow a node to automatically		Several protocols (NDP included) allow a node to automatically
configure itself based on information it learns shortly after		configure itself based on information it learns shortly after
connecting to a new link. It is particularly easy to configure		connecting to a new link. It is particularly easy to configure
"rogue" routers on an unsecured link, and it is particularly		"rogue" routers on an unsecured link, and it is particularly
difficult for a node to distinguish between valid and invalid sources		difficult for a node to distinguish between valid and invalid sources
of information, when the node needs this information before being		of information, when the node needs this information before being
able to communicate with nodes outside of the link.		able to communicate with nodes outside of the link.
End of changes.
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