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-rw-r--r--src/osmo-bts-virtual/include/virtphy/virtual_um.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/osmo-bts-virtual/include/virtphy/virtual_um.h b/src/osmo-bts-virtual/include/virtphy/virtual_um.h
index 5c883deb..6e7c3841 100644
--- a/src/osmo-bts-virtual/include/virtphy/virtual_um.h
+++ b/src/osmo-bts-virtual/include/virtphy/virtual_um.h
@@ -6,9 +6,9 @@
#define VIRT_UM_MSGB_SIZE 256
#define DEFAULT_MS_MCAST_GROUP "224.0.0.1"
-#define DEFAULT_MS_MCAST_PORT 6666
+#define DEFAULT_MS_MCAST_PORT 4729 /* IANA-registered port for GSMTAP */
#define DEFAULT_BTS_MCAST_GROUP "225.0.0.1"
-#define DEFAULT_BTS_MCAST_PORT 6667
+#define DEFAULT_BTS_MCAST_PORT 4729 /* IANA-registered port for GSMTAP */
struct virt_um_inst {
void *priv;