From 7ba1d66e8c0ff0e06561776b58238d43b16a97bd Mon Sep 17 00:00:00 2001
From: Tim Schubert <tim.schubert@tu-bs.de>
Date: Sat, 18 Jul 2020 11:56:13 +0200
Subject: [PATCH] fixup

---
 model/isl-mock-channel.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/model/isl-mock-channel.cc b/model/isl-mock-channel.cc
index 4e9b697..76fd592 100644
--- a/model/isl-mock-channel.cc
+++ b/model/isl-mock-channel.cc
@@ -73,7 +73,8 @@ IslMockChannel::TransmitStart (
         for (size_t i = 0; i < GetNDevices (); i ++)
           {
             if (i == srcId) continue;
-            Deliver (p, src, GetDevice (i), txTime);
+            dst = DynamicCast<MockNetDevice> (GetDevice (i));
+            Deliver (p, src, dst, txTime);
           }
         return true;
       }