vlan dhcp ip helper-address problem with dhcp client
Here is the 3560 conf file:
ip address 192.168.25.1 255.255.255.0
ip helper-address 192.168.0.14
no ip forward-protocol udp tftp
no ip forward-protocol udp tacacs
sw_core#sh ip interface vlan25
Vlan65 is up, line protocol is up
Internet address is 192.168.25.1/2
Broadcast address is 255.255.255.2
Address determined by non-volatile
MTU is 1500 bytes
Helper address is 192.168.0.14
Directed broadcast forwarding is disabled
I have dhcp server on Microsoft win server 2003(address 192.168.0.14). It works fine for non vlan network. I have created vlan 25. My clients are XPs. Dynamics DHCP allocation works fine for laptops, but it does not work for some of my computers. I have tried everything to reset TCP/IP stack etc.... with no avail. Then I have tried to trace dcp server with ethreal:
When I type the command:
I have on ethreal screen monitoring dhcp server:
0.0.0.0 255.255.255.255 DHCO discover
but when I use xp support command dhcplock and type d (for discover) I have :
169.254.112.153 255.255.255.255 DHCP discover
192.168.25.1 255.255.255.255 DHCP offer
So where is the problem? I do not have any idea what to do next! It is normaly no capable to locate dhcp server, but with dhcplock it can do.
Re: vlan dhcp ip helper-address problem with dhcp client
I dnot understand u r config u have the same ip configured on 2 switches or its the same switch..if its the same switch then u have defined the ip on vlan 25 and vlan65 its the same ip,can u please explain how is the connectivity of ur devices and the reason for assigning the same ip on different vlan interfaces.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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