From 52f17a899d8a92e1e1260db30f84608af774107a Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Sun, 21 May 2023 16:29:13 +0200
Subject: network: remove routes on stopping

ipv6 routes tend to stay even after stopping, so better always remove
routes of devices being stopped.
---
 sbin/init.d/network | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/sbin/init.d/network b/sbin/init.d/network
index 7ca2180..f0566bf 100755
--- a/sbin/init.d/network
+++ b/sbin/init.d/network
@@ -972,6 +972,32 @@ function do_stop {
     fi
     rm -f "/var/run/wpa_supplicant-${instname}.conf"
 
+    arg=0
+    while [ $arg -lt $route6_idx ]; do
+	local dest gw
+	dest=${route6_list[$arg]%%[ 	]*}
+	gw=${route6_list[$arg]#*[ 	]}	# gw and potentially other ip args
+	if [ -n "${gw##connected*}" ]; then
+	    ip -6 route del $dest ${instname:+dev $instname} via $gw >/dev/null 2>&1
+	else
+	    ip -6 route del $dest ${instname:+dev $instname} ${gw#connected} >/dev/null 2>&1
+	fi
+	arg=$[$arg+1]
+    done
+
+    arg=0
+    while [ $arg -lt $route_idx ]; do
+	local dest gw
+	dest=${route_list[$arg]%%[ 	]*}
+	gw=${route_list[$arg]#*[ 	]}	# gw and potentially other ip args
+	if [ -n "${gw##connected*}" ]; then
+	    ip route del $dest ${instname:+dev $instname} via $gw >/dev/null 2>&1
+	else
+	    ip route del $dest ${instname:+dev $instname} ${gw#connected} >/dev/null 2>&1
+	fi
+	arg=$[$arg+1]
+    done
+
     ip link set $instname down >/dev/null 2>&1
     ip addr flush dev $instname >/dev/null 2>&1
 
-- 
2.35.3