[PATCH net 2/2] ipv6: set multicast flag on the multicast route

From: Matteo Croce
Date: Fri Jan 15 2021 - 13:45:10 EST


From: Matteo Croce <mcroce@xxxxxxxxxxxxx>

The multicast route ff00::/8 is created with type RTN_UNICAST:

$ ip -6 -d route
unicast ::1 dev lo proto kernel scope global metric 256 pref medium
unicast fe80::/64 dev eth0 proto kernel scope global metric 256 pref medium
unicast ff00::/8 dev eth0 proto kernel scope global metric 256 pref medium

Set the type to RTN_MULTICAST which is more appropriate.

Signed-off-by: Matteo Croce <mcroce@xxxxxxxxxxxxx>
---
net/ipv6/addrconf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 19bf6822911c..9edc5bb2d531 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2467,7 +2467,7 @@ static void addrconf_add_mroute(struct net_device *dev)
.fc_ifindex = dev->ifindex,
.fc_dst_len = 8,
.fc_flags = RTF_UP,
- .fc_type = RTN_UNICAST,
+ .fc_type = RTN_MULTICAST,
.fc_nlinfo.nl_net = dev_net(dev),
.fc_protocol = RTPROT_KERNEL,
};
--
2.29.2