pppd: Fix setting flags of IPv6 peer address

Address is link-local (not globaly routable) and is permanent (not dynamic
from stateless address configuration).

Signed-off-by: Pali Rohár <pali@kernel.org>

diff --git a/pppd/sys-linux.c b/pppd/sys-linux.c
index 50c4f2dab40313e018d5c83432fd2953a895d31f..a7508fe3989601278c667bf3fb150a12afcb70c8 100644 (file)
--- a/pppd/sys-linux.c
+++ b/pppd/sys-linux.c
@@ -2885,8 +2885,8 @@ static int append_peer_ipv6_address(unsigned int iface, struct in6_addr *local_a
     ifa = NLMSG_DATA(nlmsg);
     ifa->ifa_family = AF_INET6;
     ifa->ifa_prefixlen = 128;
-    ifa->ifa_flags = 0;
-    ifa->ifa_scope = RT_SCOPE_UNIVERSE;
+    ifa->ifa_flags = IFA_F_PERMANENT;
+    ifa->ifa_scope = RT_SCOPE_LINK;
     ifa->ifa_index = iface;
 
     local_rta = IFA_RTA(ifa);