DHCP service fails when logging on an ACL is applied to a VLAN interface. This is either DHCP relay or server.
March 16, 2017
DHCP relay stops working on SG500 when ACL logging is configured. Below is the example ACL configuration:
ip access-list extended exampleACL
permit ip any any ace-priority 2000 log-input
The relay fails when applying the ACL on an interface.
interface vlan 3
ip address 10.10.30.2 255.255.255.192
ip dhcp relay enable
service-acl input exampleACL
Remove log-input from the ACL permit statement: