From bfa28480cc1ed06115f5c569ac65ba60bb81c63a Mon Sep 17 00:00:00 2001
From: Albrecht Lohofener <albrechtloh@gmx.de>
Date: Mon, 4 Nov 2024 23:13:52 +0100
Subject: [PATCH] Enable promiscuous mode for macvtap devices

Important to make multicast working
---
 src/run_openwrt.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/run_openwrt.sh b/src/run_openwrt.sh
index 34e61b5..069e0bb 100755
--- a/src/run_openwrt.sh
+++ b/src/run_openwrt.sh
@@ -45,6 +45,10 @@ attach_eth_if () {
   #ip link add link $CONTAINER_IF name $QEMU_IF type macvtap mode bridge
   ip link add link $CONTAINER_IF name $QEMU_IF type macvtap mode passthru
 
+  # Enable multicast (important for IPv6)
+  #ip link set dev $QEMU_IF allmulticast on # not working for some reason
+  ip link set dev $QEMU_IF promisc on # lets use the hammer
+
   # Create MAC address for new interface
   QEMU_MAC_OUI="52:54:00"
   read MAC </sys/class/net/$CONTAINER_IF/address