"IP_LEAVE_GROUP" does not exist. It was perhaps a confusion with MCAST_LEAVE_GROUP. Change the text to IP_DROP_MEMBERSHIP which has the same function as MCAST_LEAVE_GROUP and is documented in the ip.7 man page. Reference: Linux kernel net/ipv4/ip_sockglue.c do_ip_setsockopt() Cc: Radek Pazdera <rpazdera@xxxxxxxxxx> Signed-off-by: Benjamin Poirier <bpoirier@xxxxxxxx> --- man7/ip.7 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/man7/ip.7 b/man7/ip.7 index 3905573..37e2c86 100644 --- a/man7/ip.7 +++ b/man7/ip.7 @@ -376,7 +376,7 @@ a given multicast group that come from a given source. If the application has subscribed to multiple sources within the same group, data from the remaining sources will still be delivered. To stop receiving data from all sources at once, use -.BR IP_LEAVE_GROUP . +.BR IP_DROP_MEMBERSHIP . .IP Argument is an .I ip_mreq_source -- 2.7.2 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html