tazdevil wrote: » I seem to be having problems getting my DHCP server to dish out ip's to my voice lan vlan, if I plug the phone into another port set for the data vlan it connets and goes. I have the ip helper setup; Network; switch (3550); vlan 1 vlan 10 - voice vlan 50 - data (2621) DHCP Router - Sw1 (fa/10) - access vlan 50 ip dhcp excluded-address 172.16.1.1 172.16.1.10 ip dhcp excluded-address 172.16.2.1 172.16.2.10 ! ip dhcp pool VOICE network 172.16.1.0 255.255.255.0 default-router 172.16.1.1 dns-server 4.2.2.2 option 150 ip 172.16.1.1 ! ip dhcp pool DATA network 172.16.2.0 255.255.255.0 default-router 172.16.2.1 dns-server 4.2.2.2 option 150 ip 172.16.1.1 (2650xm) CME Router; - sw1 (fa0/20) - mode trunk encap dot1q interface FastEthernet0/0.1 encapsulation dot1Q 1 native ip address 172.16.4.1 255.255.255.0 ! interface FastEthernet0/0.10 description Voice Vlan encapsulation dot1Q 10 ip address 172.16.1.1 255.255.255.0 ip helper-address 172.16.2.5 ! interface FastEthernet0/0.50 description Data Vlan encapsulation dot1Q 50 ip address 172.16.2.1 255.255.255.0 if I change a switchport to access vlan 10, and configure a pc with an ip in the range, I can ping to the gateway (172.16.1.1) and to the dhcp server (172.16.2.5) and from the data vlan, I can ping the client PC on the voice vlan (10) and the voice gateway. I am confused as can be as to what is going on. any help would be appreciated. I assume my router-on-a-stick is working since I can ping everything, and the ip helper is suppose to take the address from a broadcast to a unicast and send it to 172.16.2.5. When I check the dhcp server bindings I see ip address being handed out (172.16.1.11,12,13,14), but nothing seems to happen after that. I know the CME is working since when I moved the phones to different switchports set only for the data vlan (50) they connected and I can call between the extensions. thanks in advance.. I am enjoing and learing lots...
