diff --git a/lib/librss/librss.h b/lib/librss/librss.h
--- a/lib/librss/librss.h
+++ b/lib/librss/librss.h
@@ -46,14 +46,6 @@
 
 typedef void rss_bucket_rebalance_cb_t(void *arg);
 
-/*
- * Enable/disable whether to allow for multiple bind()s to the
- * given PCB entry.
- *
- * This must be done before bind().
- */
-extern	int rss_sock_set_bindmulti(int fd, int af, int val);
-
 /*
  * Set the RSS bucket for the given file descriptor.
  *
diff --git a/lib/librss/librss.3 b/lib/librss/librss.3
--- a/lib/librss/librss.3
+++ b/lib/librss/librss.3
@@ -23,8 +23,6 @@
 .Ft int
 .Fn rss_set_bucket_rebalance_cb "rss_bucket_rebalance_cb_t *cb" "void *cbdata"
 .Ft int
-.Fn rss_sock_set_bindmulti "int fd" "int af" "int val"
-.Ft int
 .Fn rss_sock_set_rss_bucket "int fd" "int af" "int rss_bucket"
 .Ft int
 .Fn rss_sock_set_recvrss "int fd" "int af" "int val"
@@ -102,16 +100,6 @@
 .Fn rss_config_free
 is called to free the RSS configuration structure.
 .Pp
-To make a
-.Vt bind
-socket RSS aware, the
-.Fn rss_sock_set_bindmulti
-function is used to enable or disable per-RSS bucket
-behaviour.
-The socket filedescriptor, address family and enable flag
-.Vt val
-are passed in.
-.Pp
 If
 .Vt val
 is set to 1, the socket can be placed in an RSS bucket and will only accept
diff --git a/lib/librss/librss.c b/lib/librss/librss.c
--- a/lib/librss/librss.c
+++ b/lib/librss/librss.c
@@ -46,28 +46,6 @@
 
 #include "librss.h"
 
-int
-rss_sock_set_bindmulti(int fd, int af, int val)
-{
-	int opt;
-	socklen_t optlen;
-	int retval;
-
-	/* Set bindmulti */
-	opt = val;
-	optlen = sizeof(opt);
-	retval = setsockopt(fd,
-	    af == AF_INET ? IPPROTO_IP : IPPROTO_IPV6,
-	    af == AF_INET ? IP_BINDMULTI : IPV6_BINDMULTI,
-	    &opt,
-	    optlen);
-	if (retval < 0) {
-		warn("%s: setsockopt(IP_BINDMULTI)", __func__);
-		return (-1);
-	}
-	return (0);
-}
-
 int
 rss_sock_set_rss_bucket(int fd, int af, int rss_bucket)
 {