DHCP Server on Cisco Catalyst 3560 trunked to Cisco Catalyst Express 500 dropping DHCP Replies on 500
Cisco Catalyst 3560 serving up DHCP is trunked to Cisco Catalyst Express 500.
The CE500 is dropping DHCP replies on the trunked interface and therefor not serving DHCP devices connected to CE500.
Error on CE500 is; "Port Gi1: Dynamic Host Configuration Protocol (DHCP) reply messages dropped for non-existing or disconnected devices on this interface."
Port Gi1 on CE 500 is setup via Smartport to be Cisco Switch (via macro I assume)
Port GigabitEthernet0/3 on the 3560 is setup as follows;
description Express 500
switchport trunk encapsulation dot1q
switchport mode trunk
macro description cisco-switch
power inline never
auto qos voip trust
spanning-tree link-type point-to-point
Configuring network clients can be a chore, especially if there are a large number of them or a lot of itinerant users. DHCP dynamically manages this process, much to the relief of users and administrators alike!
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