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Diffstat (limited to 'sysdeps/unix/sysv/linux/bits/in.h')
-rw-r--r--sysdeps/unix/sysv/linux/bits/in.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/in.h b/sysdeps/unix/sysv/linux/bits/in.h
index 433c033c70..b457a1790f 100644
--- a/sysdeps/unix/sysv/linux/bits/in.h
+++ b/sysdeps/unix/sysv/linux/bits/in.h
@@ -70,6 +70,7 @@
#define IP_PMTUDISC_DONT 0 /* Never send DF frames. */
#define IP_PMTUDISC_WANT 1 /* Use per route hints. */
#define IP_PMTUDISC_DO 2 /* Always DF. */
+#define IP_PMTUDISC_PROBE 3 /* Ignore dst pmtu. */
/* To select the IP level. */
#define SOL_IP 0
@@ -162,6 +163,7 @@ struct in_pktinfo
#define IPV6_PMTUDISC_DONT 0 /* Never send DF frames. */
#define IPV6_PMTUDISC_WANT 1 /* Use per route hints. */
#define IPV6_PMTUDISC_DO 2 /* Always DF. */
+#define IPV6_PMTUDISC_PROBE 3 /* Ignore dst pmtu. */
/* Socket level values for IPv6. */
#define SOL_IPV6 41