1 files changed, 4 insertions, 1 deletions
diff --git a/src/udp6.c b/src/udp6.c
index 97156d1..18ce998 100644
--- a/src/udp6.c
+++ b/src/udp6.c
@@ -11,6 +11,8 @@
 void udp6_input(struct mbuf *m)
 {
     Slirp *slirp = m->slirp;
+    M_DUP_DEBUG(slirp, m, 0, 0);
+
     struct ip6 *ip, save_ip;
     struct udphdr *uh;
     int iphlen = sizeof(struct ip6);
@@ -153,7 +155,8 @@ bad:
 int udp6_output(struct socket *so, struct mbuf *m, struct sockaddr_in6 *saddr,
                 struct sockaddr_in6 *daddr)
 {
-    g_assert(M_ROOMBEFORE(m) >= sizeof(struct ip6) + sizeof(struct udphdr));
+    Slirp *slirp = m->slirp;
+    M_DUP_DEBUG(slirp, m, 0, sizeof(struct ip6) + sizeof(struct udphdr));
 
     struct ip6 *ip;
     struct udphdr *uh;