Dear All, I faced a scenario on workbook 2 that requests to have HQ and BR1 phones acquire their IP addresses from UCM-PUB. What happened was BR1 phones were able to get IP addresses from the UCM-PUB but HQ phones were not. The Switch and HQ router configuration is as follows. I appreciate if anyone can help on that. NOTE: The UCM-PUB is pingable from the switch and the HQ-RTR. Switch: vlan 10 name DATA!vlan 20 name PHONES!vlan 30 name SERVERS!interface fastethernet 1/0/1 -- To HQ router switchport trunk encapsulation dot1q switchport mode trunk switchport trunk native vlan 10!interface fastethernet 1/0/2 -- HQ Phone 1 switchport access vlan 10 switchport mode access switchport voice vlan 20 spantree portfast!/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// HQ-RTR: interface fastethernet 0/0.10 encapsulation dot1q 10 native ip address 10.10.100.1 255.255.255.0!interface fastethernet 0/0.20 encapsulation dot1q 20 ip address 10.10.200.3 255.255.255.0 ip helper-address 10.10.210.10!interface fastethernet 0/0.30 encapsulation dot1q 30 ip address 10.10.210.1 255.255.255.0!/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Thanks Ramy
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