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| author | David Ahern <dsa@cumulusnetworks.com> | 2017-04-12 11:49:04 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-17 12:44:55 -0400 |
| commit | 4a6e3c5def13c91adf2acc613837001f09af3baa (patch) | |
| tree | 819fb5b47fc2141e6da1e14166c72891d5efec10 | |
| parent | 70d40b366d2f7c2facaa3bc20f26e562e91ce94d (diff) | |
| download | linux-4a6e3c5def13c91adf2acc613837001f09af3baa.tar.gz linux-4a6e3c5def13c91adf2acc613837001f09af3baa.tar.bz2 linux-4a6e3c5def13c91adf2acc613837001f09af3baa.zip | |
net: ipv6: send unsolicited NA on admin up
ndisc_notify is the ipv6 equivalent to arp_notify. When arp_notify is
set to 1, gratuitous arp requests are sent when the device is brought up.
The same is expected when ndisc_notify is set to 1 (per ndisc_notify in
Documentation/networking/ip-sysctl.txt). The NA is not sent on NETDEV_UP
event; add it.
Fixes: 5cb04436eef6 ("ipv6: add knob to send unsolicited ND on link-layer address change")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv6/ndisc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index b5812b3f7539..b23822e64228 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1748,6 +1748,8 @@ static int ndisc_netdev_event(struct notifier_block *this, unsigned long event, case NETDEV_CHANGEADDR: neigh_changeaddr(&nd_tbl, dev); fib6_run_gc(0, net, false); + /* fallthrough */ + case NETDEV_UP: idev = in6_dev_get(dev); if (!idev) break; |