diff --git a/configs/frank/frank-mdf-4507.cfg b/configs/frank/frank-mdf-4507.cfg
index e98ed18..2681599 100644
--- a/configs/frank/frank-mdf-4507.cfg
+++ b/configs/frank/frank-mdf-4507.cfg
@@ -1,8 +1,9 @@
 Building configuration...
 
-Current configuration : 20951 bytes
+Current configuration : 21724 bytes
 !
-! Last configuration change at 09:59:10 EDT Sat Oct 4 2025
+! Last configuration change at 10:35:46 EDT Tue Mar 10 2026 by estein66.admin
+! NVRAM config last updated at 10:37:15 EDT Tue Mar 10 2026 by estein66.admin
 !
 version 15.2
 no service pad
@@ -115,6 +116,16 @@ archive
  path bootflash:
  maximum 5
 file privilege 10
+object-group network day-enterprise-servers 
+ description day-enterprise-servers
+ host 10.1.230.11
+ host 10.1.40.108
+!
+object-group network dns-servers 
+ description Internal-DNS-Servers
+ host 10.1.40.10
+ host 10.1.48.11
+!
 object-group network netadmin-hosts 
  description SCSD Network Administrators Hosts
 !
@@ -124,6 +135,10 @@ object-group network netadmins-hosts
  host 10.1.6.126
  host 10.1.6.32
 !
+object-group network ntp-servers 
+ host 10.1.40.154
+ host 10.1.48.103
+!
 !
 spanning-tree mode rapid-pvst
 spanning-tree loopguard default
@@ -619,6 +634,7 @@ interface Vlan207
 !
 interface Vlan230
  ip address 10.24.230.1 255.255.255.224
+ ip access-group hvac in
 !
 interface Vlan233
  ip address 10.24.233.1 255.255.255.0
@@ -727,9 +743,15 @@ ip access-list extended AutoQos-4.0-ACL-Transactional-Data
  permit tcp any any eq 1630
  permit udp any any eq 1630
 ip access-list extended hvac
- permit ip 10.24.230.0 0.0.0.31 host 10.1.230.11
- permit ip host 10.1.230.11 10.24.230.0 0.0.0.31
- deny   ip any any
+ permit ip 10.24.230.0 0.0.0.31 object-group day-enterprise-servers
+ permit udp 10.24.230.0 0.0.0.31 object-group dns-servers eq domain
+ permit udp 10.24.230.0 0.0.0.31 object-group ntp-servers eq ntp
+ permit icmp 10.24.230.0 0.0.0.31 host 10.24.230.1
+ permit icmp host 10.24.230.1 10.24.230.0 0.0.0.31
+ deny   ip any 10.0.0.0 0.255.255.255
+ deny   ip any 192.168.0.0 0.0.255.255
+ deny   ip any 172.16.0.0 0.15.255.255
+ permit tcp 10.24.230.0 0.0.0.31 any eq 587 log-input
 ip access-list extended sbhc-acl
  permit ip 10.24.107.0 0.0.0.255 10.107.50.0 0.0.0.255
  permit tcp 10.24.107.0 0.0.0.255 any eq 443