3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lorenzo Colitti <lorenzo@xxxxxxxxxx> [ Upstream commit 3e8b0ac3e41e3c882222a5522d5df7212438ab51 ] Setting net.ipv6.conf.<interface>.accept_ra=2 causes the kernel to accept RAs even when forwarding is enabled. However, enabling forwarding purges all default routes on the system, breaking connectivity until the next RA is received. Fix this by not purging default routes on interfaces that have accept_ra=2. Signed-off-by: Lorenzo Colitti <lorenzo@xxxxxxxxxx> Acked-by: YOSHIFUJI Hideaki <yoshfuji@xxxxxxxxxxxxxx> Acked-by: Eric Dumazet <edumazet@xxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- net/ipv6/route.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1920,7 +1920,8 @@ void rt6_purge_dflt_routers(struct net * restart: read_lock_bh(&table->tb6_lock); for (rt = table->tb6_root.leaf; rt; rt = rt->dst.rt6_next) { - if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) { + if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF) && + (!rt->rt6i_idev || rt->rt6i_idev->cnf.accept_ra != 2)) { dst_hold(&rt->dst); read_unlock_bh(&table->tb6_lock); ip6_del_rt(rt); -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html