diff --git a/configs/noc/noc-a6300-sw1.cfg b/configs/noc/noc-a6300-sw1.cfg
index 4dc21f7..88719bc 100644
--- a/configs/noc/noc-a6300-sw1.cfg
+++ b/configs/noc/noc-a6300-sw1.cfg
@@ -71,11 +71,14 @@ vsf member 3
     type jl659a
     link 1 3/1/49
     link 2 3/1/50
-access-list ip hvac
-    10 permit tcp 10.1.230.12 10.1.230.11
-    20 permit icmp 10.1.230.12 10.1.230.11 log count
-    30 permit tcp 10.1.230.12 10.1.40.108
-    40 permit icmp 10.1.230.12 10.1.40.108 log count
+access-list ip hvac-acl
+    10 permit any any 10.1.230.11
+    20 permit any any 10.1.40.108
+    30 permit udp any any eq dns
+    40 deny any any 10.0.0.0/255.0.0.0
+    50 deny any any 192.168.0.0/255.255.0.0
+    60 deny any any 172.16.0.0/255.240.0.0
+    70 permit tcp any any eq 587 log count
 dhcpv4-snooping
 client track ip 
 vlan 1
@@ -1461,7 +1464,7 @@ interface 2/1/2
     spanning-tree root-guard
     spanning-tree tcn-guard
     loop-protect
-    apply access-list ip hvac in
+    apply access-list ip hvac-acl in
     port-access onboarding-method concurrent enable
     client track ip enable
     client track ip update-interval 120