diff --git a/netutils/constants.py b/netutils/constants.py
index cedcb1a2..37a5de97 100644
--- a/netutils/constants.py
+++ b/netutils/constants.py
@@ -15,6 +15,8 @@
     "Bd": "Bdi",
     "Bdi": "Bdi",
     "Bridge-Aggregation": "Port-channel",
+    "Dialer": "Dialer",
+    "Di": "Dialer",
     "EOBC": "EOBC",
     "EO": "EOBC",
     "Ethernet": "Ethernet",
@@ -174,6 +176,7 @@
 REVERSE_MAPPING = {
     "AppGigabitEthernet": "Ap",
     "ATM": "At",
+    "Dialer": "Di",
     "EOBC": "EO",
     "Ethernet": "Et",
     "FastEthernet": "Fa",