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How to solve DHCP and VLANs not getting IP addresses?
Go to Solution. 11-06-2003 06:57 PM 11-06-2003 06:57 PM I believe that you had a TAC case open as well and i was helping out the case owner on this one. The call manager/DHCP server port needs to be an Access vLAN. We changed the port to access VLAN 4 and had you reboot the Call manager to purge the DHCP cache.
Why is IP phone not getting IP address from DHCP server?
The DHCP server is saying… hell no, that IP Address is already in use and then declining the connection .The phone then goes back to its loop, constantly looking for 10.1.0.147. First off, why the heck is it asking for the same IP Address over and over?
Can a IP phone accept an IP address?
02-02-2009 02:19 PM IP Phones which are connected to a 2950 switch [PC on vlan10 and Phone on 20] {Siemens optipoint phone] . R*-C1800 , on debugging dhcp packets ,i could see that packets are forwared to the dhcp server and its getting back an ip address and it is unicasted to the phone , but the phone is not accepting the ip .
Can a DHCP client get a different IP address?
If the client sending the DHCPRequest is requesting an address that appears to be on the same subnet but was actually assigned with a different subnet mask, the DHCP server will remain silent and the client will fail to obtain a valid IP address for the new subnet.
How to configure intervlan routing on Layer 3 Cisco switches?
If you need information on how to configure VLANs, access ports, and trunking on the 3550, refer to Creating Ethernet VLANs on Catalyst Switches for the specific Cisco IOS version you run on the switch. The information in this document is based on a Catalyst 3550-48 that runs Cisco IOS Software Release 12.2 (44)SE6 EMI.
Which is the best image for intervlan routing?
Requirements Image Type and Version InterVLAN Routing Capability Enhanced Multilayer Image (EMI) – All Ve Yes Standard Multilayer Image (SMI) – earlie No Standard Multilayer Image (SMI) – Cisco Yes
Why does my DHCP server not get my IP address?
I am not familiar with most of the stuff you are running, but I may have a tip on the dhcp ip address issue. On each router interface (vlan) you need to configure an “ip helper” address that points to a dhcp server, so the router can redirect dhcp discovers to the correct server – unless the dhcp server exists in the same vlan as the dhcp client.