diff --git a/sbin/route/route.8 b/sbin/route/route.8
--- a/sbin/route/route.8
+++ b/sbin/route/route.8
@@ -28,7 +28,7 @@
 .\"     @(#)route.8	8.3 (Berkeley) 3/19/94
 .\" $FreeBSD$
 .\"
-.Dd March 14, 2023
+.Dd June 1, 2023
 .Dt ROUTE 8
 .Os
 .Sh NAME
@@ -36,6 +36,7 @@
 .Nd manually manipulate the routing tables
 .Sh SYNOPSIS
 .Nm
+.Op Fl j Ar jail
 .Op Fl dnqtv
 .Ar command
 .Oo
@@ -91,6 +92,8 @@
 and
 .Cm flush
 commands.
+.It Fl j Ar jail
+Run inside a jail.
 .El
 .Pp
 The
diff --git a/sbin/route/route.c b/sbin/route/route.c
--- a/sbin/route/route.c
+++ b/sbin/route/route.c
@@ -48,6 +48,9 @@
 #include <sys/file.h>
 #include <sys/socket.h>
 #include <sys/ioctl.h>
+#ifdef JAIL
+#include <sys/jail.h>
+#endif
 #include <sys/sysctl.h>
 #include <sys/types.h>
 #include <sys/queue.h>
@@ -172,7 +175,7 @@
 {
 	if (cp != NULL)
 		warnx("bad keyword: %s", cp);
-	errx(EX_USAGE, "usage: route [-46dnqtv] command [[modifiers] args]");
+	errx(EX_USAGE, "usage: route [-j jail] [-46dnqtv] command [[modifiers] args]");
 	/* NOTREACHED */
 }
 
@@ -180,6 +183,9 @@
 main(int argc, char **argv)
 {
 	int ch;
+#ifdef JAIL
+	int jid;
+#endif
 	size_t len;
 
 	if (argc < 2)
@@ -218,6 +224,18 @@
 		case 'd':
 			debugonly = 1;
 			break;
+		case 'j':
+#ifdef JAIL
+			if (optarg == NULL)
+				usage(NULL);
+			jid = jail_getid(optarg);
+			if (jid == -1)
+				errx(1, "Jail not found");
+			if (jail_attach(jid) != 0)
+				errx(1, "Cannot attach to jail");
+#else
+			errx(1, "Jail support is not compiled in");
+#endif
 		case '?':
 		default:
 			usage(NULL);