From a8522b7243e6b0fe76c91ccf52a9128d5fa9d0f6 Mon Sep 17 00:00:00 2001
From: Franco Fichtner <franco@opnsense.org>
Date: Fri, 26 Nov 2021 10:27:11 +0100
Subject: [PATCH] interfaces: use same approach as ppp-linkup script #5367

---
 src/etc/rc.newwanip | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/etc/rc.newwanip b/src/etc/rc.newwanip
index c7c3ad656..19fbb6dae 100755
--- a/src/etc/rc.newwanip
+++ b/src/etc/rc.newwanip
@@ -164,8 +164,8 @@ if (!is_ipaddr($cacheip) || $ip != $cacheip || !is_ipaddr($configip)) {
         mwexec('/sbin/pfctl -Fs');
     } else if (is_ipaddr($cacheip) && $ip != $cacheip) {
         log_error("IP address change detected, killing states of old ip $cacheip");
-        mwexecf('/sbin/pfctl -k 0.0.0.0/0 -k %s', $cacheip);
-        mwexecf('/sbin/pfctl -k %s', $cacheip);
+        mwexecf('/sbin/pfctl -i %s -k 0.0.0.0/0 -k %s/32', [$interface_real, $cacheip]);
+        mwexecf('/sbin/pfctl -i %s -k %s/32 -k 0.0.0.0/0', [$interface_real, $cacheip]);
     }
 
     if (is_ipaddr($ip)) {