Commit 8da86466 authored by Committed by David S. MillerBrowse files
net: neighbour: Add mcast_resolicit to configure the number of multicast...
net: neighbour: Add mcast_resolicit to configure the number of multicast resolicitations in PROBE state. We send unicast neighbor (ARP or NDP) solicitations ucast_probes times in PROBE state. Zhu Yanjun reported that some implementation does not reply against them and the entry will become FAILED, which is undesirable. We had been dealt with such nodes by sending multicast probes mcast_ solicit times after unicast probes in PROBE state. In 2003, I made a change not to send them to improve compatibility with IPv6 NDP. Let's introduce per-protocol per-interface sysctl knob "mcast_ reprobe" to configure the number of multicast (re)solicitation for reconfirmation in PROBE state. The default is 0, since we have been doing so for 10+ years. Reported-by: Zhu Yanjun <Yanjun.Zhu@windriver.com> CC: Ulf Samuelsson <email@example.com> Signed-off-by: YOSHIFUJI Hideaki <firstname.lastname@example.org> Signed-off-by: YOSHIFUJI Hideaki <email@example.com> Signed-off-by: David S. Miller <firstname.lastname@example.org>
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