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-rw-r--r--package/firewall/files/lib/fw.sh1
1 files changed, 1 insertions, 0 deletions
diff --git a/package/firewall/files/lib/fw.sh b/package/firewall/files/lib/fw.sh
index 19dddef443..896947241a 100644
--- a/package/firewall/files/lib/fw.sh
+++ b/package/firewall/files/lib/fw.sh
@@ -242,5 +242,6 @@ fw_get_subnet4() {
export -n -- "$_var=! $_flag $_ipaddr/${_netmask:-255.255.255.255}" || \
export -n -- "$_var=$_flag $_ipaddr/${_netmask:-255.255.255.255}"
;;
+ *) export -n -- "$_var=" ;;
esac
}