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-rw-r--r--sys/netinet/in.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/netinet/in.h b/sys/netinet/in.h
index 9e8a652..15a182c 100644
--- a/sys/netinet/in.h
+++ b/sys/netinet/in.h
@@ -419,7 +419,7 @@ struct ip_mreq {
#define IPCTL_STATS 12 /* ipstat structure */
#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */
#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */
-#define IPCTL_KEEPFAITH 15
+#define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */
#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */
#define IPCTL_MAXID 17
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