Messages in this thread Patch in this message | | | Date | Mon, 27 Feb 2006 14:32:09 -0800 | From | Chris Wright <> | Subject | [patch 09/39] [IPV6]: Address autoconfiguration does not work after device down/up cycle |
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-stable review patch. If anyone has any objections, please let us know. ------------------
If you set network interface down and up again, the IPv6 address autoconfiguration does not work. 'ip addr' shows that the link-local address is in tentative state. We don't even react to periodical router advertisements.
During NETDEV_DOWN we clear IF_READY, and we don't set it back in NETDEV_UP. While starting to perform DAD on the link-local address, we notice that the device is not in IF_READY, and we abort autoconfiguration process (which would eventually send router solicitations).
Acked-by: Juha-Matti Tapio <jmtapio@verkkotelakka.net> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: "David S. Miller" <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> ---
net/ipv6/addrconf.c | 3 +++ 1 files changed, 3 insertions(+)
--- linux-2.6.15.4.orig/net/ipv6/addrconf.c +++ linux-2.6.15.4/net/ipv6/addrconf.c @@ -2164,6 +2164,9 @@ static int addrconf_notify(struct notifi dev->name); break; } + + if (idev) + idev->if_flags |= IF_READY; } else { if (!netif_carrier_ok(dev)) { /* device is still not ready. */ -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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