diff --git a/src/sys/unix.rs b/src/sys/unix.rs
index 413632e7..8a070681 100644
--- a/src/sys/unix.rs
+++ b/src/sys/unix.rs
@@ -1348,6 +1348,22 @@ impl crate::Socket {
         .map(|_| ())
     }
 
+    /// Sets the value for the `SO_SETFIB` option on this socket.
+    ///
+    /// Bind socket to the specified forwarding table (VRF) on a FreeBSD.
+    #[cfg(all(feature = "all", any(target_os = "freebsd")))]
+    #[cfg_attr(docsrs, doc(cfg(all(feature = "all", any(target_os = "freebsd")))))]
+    pub fn set_fib(&self, fib: u32) -> io::Result<()> {
+        syscall!(setsockopt(
+            self.as_raw(),
+            libc::SOL_SOCKET,
+            libc::SO_SETFIB,
+            (&fib as *const u32).cast(),
+            mem::size_of::<u32>() as libc::socklen_t,
+        ))
+        .map(|_| ())
+    }
+
     /// Sets the value for `IP_BOUND_IF` option on this socket.
     ///
     /// If a socket is bound to an interface, only packets received from that