ndisc: make first solicit delayed randomly

Closes #13460.

diff --git a/src/libsystemd-network/sd-ndisc.c b/src/libsystemd-network/sd-ndisc.c
index 5e711713d9d5596f6421d9a550e35429b3996f29..9922203ac4be88002c91d7e2ca06eb344b925634 100644 (file)
--- a/src/libsystemd-network/sd-ndisc.c
+++ b/src/libsystemd-network/sd-ndisc.c
@@ -365,7 +365,7 @@ _public_ int sd_ndisc_start(sd_ndisc *nd) {
 
         r = event_reset_time(nd->event, &nd->timeout_event_source,
                              clock_boottime_or_monotonic(),
-                             0, 0,
+                             time_now + USEC_PER_SEC / 2, 1 * USEC_PER_SEC, /* See RFC 8415 sec. 18.2.1 */
                              ndisc_timeout, nd,
                              nd->event_priority, "ndisc-timeout", true);
         if (r < 0)