It might be IP dhcp snooping...
On Tue, Jan 8, 2013 at 7:57 AM, Nicolas MICHEL <[email protected]>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 >
_______________________________________________ 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
