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authorNeil Horman <nhorman@tuxdriver.com>2007-04-25 17:08:10 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:23:43 -0700
commit95c385b4d5a71b8ad552aecaa968ea46d7da2f6a (patch)
tree49d8e60418cb4eeb0c9ed79fd095af50f6ec6623 /include/linux/if_addr.h
parent502b093569e48db264831be7966e1c447de2f52f (diff)
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support.
Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_addr.h')
-rw-r--r--include/linux/if_addr.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/if_addr.h b/include/linux/if_addr.h
index d557e4ce9b6b..43f3bedaafd3 100644
--- a/include/linux/if_addr.h
+++ b/include/linux/if_addr.h
@@ -39,6 +39,7 @@ enum
#define IFA_F_TEMPORARY IFA_F_SECONDARY
#define IFA_F_NODAD 0x02
+#define IFA_F_OPTIMISTIC 0x04
#define IFA_F_HOMEADDRESS 0x10
#define IFA_F_DEPRECATED 0x20
#define IFA_F_TENTATIVE 0x40