From b5f92f417dc3689f4a8d6e4fa298a9073379cd04 Mon Sep 17 00:00:00 2001
From: Martin Wiebe <m.wiebe311204@gmail.com>
Date: Wed, 8 Jan 2025 09:10:30 +0000
Subject: [PATCH 1/3] Fix attach_eth_if function

---
 src/run_openwrt.sh | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/run_openwrt.sh b/src/run_openwrt.sh
index 3167514..88c097d 100755
--- a/src/run_openwrt.sh
+++ b/src/run_openwrt.sh
@@ -54,9 +54,14 @@ attach_eth_if () {
   read MAC </sys/class/net/$CONTAINER_IF/address
   QEMU_IF_MAC=${QEMU_MAC_OUI}${MAC:8} # Replaces the 8 first characters of the original MAC
 
-  # Active new interface
-  ip link set $QEMU_IF address $QEMU_IF_MAC up
-  #ip link set $QEMU_IF up
+  # Deacticate host interface
+  ip link set $HOST_IF down
+
+  # Change MAC address of new interface
+  ip link set $QEMU_IF address $QEMU_IF_MAC
+
+  # Reactivate interfaces
+  ip link set $QEMU_IF up && ip link set $HOST_IF up
 }
 
 # Create veth pairs between host system and Docker container

From 2a95987a6e65db6d27ce23460cd58dba73c9a80d Mon Sep 17 00:00:00 2001
From: Martin Wiebe <m.wiebe311204@gmail.com>
Date: Wed, 8 Jan 2025 10:44:29 +0000
Subject: [PATCH 2/3] Using the right variable

---
 src/run_openwrt.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/run_openwrt.sh b/src/run_openwrt.sh
index 88c097d..09bc7ab 100755
--- a/src/run_openwrt.sh
+++ b/src/run_openwrt.sh
@@ -55,13 +55,13 @@ attach_eth_if () {
   QEMU_IF_MAC=${QEMU_MAC_OUI}${MAC:8} # Replaces the 8 first characters of the original MAC
 
   # Deacticate host interface
-  ip link set $HOST_IF down
+  ip link set $CONTAINER_IF down
 
   # Change MAC address of new interface
   ip link set $QEMU_IF address $QEMU_IF_MAC
 
   # Reactivate interfaces
-  ip link set $QEMU_IF up && ip link set $HOST_IF up
+  ip link set $QEMU_IF up && ip link set $CONTAINER_IF up
 }
 
 # Create veth pairs between host system and Docker container

From 183ef15bcfeef808732d88cebc1d6b360344cb40 Mon Sep 17 00:00:00 2001
From: Martin Wiebe <m.wiebe311204@gmail.com>
Date: Wed, 8 Jan 2025 10:52:23 +0000
Subject: [PATCH 3/3] Add comment for clarity

---
 src/run_openwrt.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/run_openwrt.sh b/src/run_openwrt.sh
index 09bc7ab..fa14d2c 100755
--- a/src/run_openwrt.sh
+++ b/src/run_openwrt.sh
@@ -55,6 +55,7 @@ attach_eth_if () {
   QEMU_IF_MAC=${QEMU_MAC_OUI}${MAC:8} # Replaces the 8 first characters of the original MAC
 
   # Deacticate host interface
+  # Ensure the interface is down to reliably change the MAC address without issues
   ip link set $CONTAINER_IF down
 
   # Change MAC address of new interface