From dbfc07b026d4f1454f1a7ad77440161d84c9600e Mon Sep 17 00:00:00 2001
From: Alex Zenla <alex@mycelium.engineering>
Date: Sun, 11 Feb 2024 16:09:03 +0000
Subject: [PATCH] network: ensure multicast bit is unset in random mac
 addresses

---
 controller/src/ctl/mod.rs | 1 +
 network/src/backend.rs    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/controller/src/ctl/mod.rs b/controller/src/ctl/mod.rs
index 1b716fb..fff968a 100644
--- a/controller/src/ctl/mod.rs
+++ b/controller/src/ctl/mod.rs
@@ -85,6 +85,7 @@ impl Controller {
 
         let mut mac = MacAddr6::random();
         mac.set_local(true);
+        mac.set_multicast(false);
         let ipv4 = self.allocate_ipv4()?;
         let ipv6 = mac.to_link_local_ipv6();
         let launch_config = LaunchInfo {
diff --git a/network/src/backend.rs b/network/src/backend.rs
index 0c0b440..e1239bc 100644
--- a/network/src/backend.rs
+++ b/network/src/backend.rs
@@ -132,6 +132,7 @@ impl NetworkBackend {
         let mac = self.force_mac_address.unwrap_or_else(|| {
             let mut mac = MacAddr6::random();
             mac.set_local(true);
+            mac.set_multicast(false);
             mac
         });
         let mac = smoltcp::wire::EthernetAddress(mac.to_array());