Nic, On your HQ router, can you check Fa0/0.10? Make sure you have the following config:
encapsulation dot1q 10 native I don't think it is DHCP snooping or you would not receive an IP address. However, you could (and should) Erase the config on the IP phone to ensure it isn't just using an "old" DHCP config. I would also check the DHCP scope. Check the server level (where you are likely specifying global Option 150 params) and check the scope itself. Make sure you haven't fat fingered a subnet mask, subnet, begin/end address, or default gateway. When I have had a problem where the phone was getting an address but was not progressing through TFTP and registration it was usually related to a misconfiguration of the DHCP scope in CUCM. If you have to change the DHCP scope params then remember to restart the DHCP monitor service. It is a finicky beast. HTH. -Bill On Jan 8, 2013, at 9:57 AM, Nicolas MICHEL wrote: > Hey guys. > > I m in trouble with the phone connected to Fa1/0/23 of the 3750 in HQ. > > Vlan assignement are OK: > HQ-3750#sh run int fa1/0/23 > Building configuration... > > Current configuration : 113 bytes > ! > interface FastEthernet1/0/23 > switchport access vlan 10 > switchport voice vlan 20 > spanning-tree portfast > end > > HQ-3750#sh run int fa1/0/1 > Building configuration... > > Current configuration : 153 bytes > ! > interface FastEthernet1/0/1 > switchport trunk encapsulation dot1q > switchport trunk native vlan 10 > switchport mode trunk > speed 100 > duplex full > end > > HQ-3750#sh int trunk > > Port Mode Encapsulation Status Native vlan > Fa1/0/1 on 802.1q trunking 10 > > Port Vlans allowed on trunk > Fa1/0/1 1-4094 > > Port Vlans allowed and active in management domain > Fa1/0/1 1,10,20,30 > > Port Vlans in spanning tree forwarding state and not pruned > Fa1/0/1 1,10,20,30 > > > > > IP HELPER on the L3 Device is OK > > interface FastEthernet0/0.20 > encapsulation dot1Q 20 > ip address 10.10.200.3 255.255.255.0 > ip helper-address 10.10.210.10 > end > > > IP Phone can get an IP from the PUB (10.10.210.10) > > HQ-3750#sh cdp neigh fa1/0/23 det > ------------------------- > Device ID: SEP0021A086825D > Entry address(es): > IP address: 10.10.200.50 > Platform: Cisco IP Phone 7962, Capabilities: Host Phone > Interface: FastEthernet1/0/23, Port ID (outgoing port): Port 1 > Holdtime : 178 sec > > Version : > SCCP42.8-4-1S > > advertisement version: 2 > Duplex: full > Power drawn: 6.300 Watts > Power request id: 33373, Power management id: 1 > Power request levels are:6300 0 0 0 0 > Management address(es): > > > > the DHCP subnet is identical (except the IP range of course :) ) to the > others DHCP pool which other phone use and can register to CUCM... > > I have no idea what is the problem here since it is a very basic problem .... > > if anyone has experienced the same on POD 11 of PL ? > > > Many thanks for your help on this > > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com -- William Bell blog: http://ucguerrilla.com Follow me on twitter @ucguerrilla
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
