Re: Regarding Helping address

kindly guyz ... please help me out ...

On Mon, May 17, 2010 at 12:04 AM, Faisal Ilyas <faisal.learning_at_gmail.com>wrote:

> Acutally helper address is already configured on distribution switches and
> all the vlan clients are happily taking IP address from DHCP, i just want to
> know why that device is not taking IP from DHCP server even i span the vlan
> 252 to the core ...
>
>
>
>
>
> On Sun, May 16, 2010 at 9:38 PM, Shahid Ansari <shahid1357_at_gmail.com>wrote:
>
>> Walekumus salaam ,
>>
>> Faisal , Vlans are broadcast domains in switched network regardless of
>> their physical location (Core switch or access switch) and If I
>> understood your question correctly ,your DHCP server is in VLAN 1 and all
>> other clients are in x,y,z vlans.
>>
>> 1)Do "no ip directed-broadcast" on Vlan 1
>> 2)Configure ip helper address on client side vlans x,y,z
>>
>> Thanks
>> Shahid Ansari
>>
>> On Sun, May 16, 2010 at 2:08 PM, Faisal Ilyas <faisal.learning_at_gmail.com
>> > wrote:
>>
>>> Salam,
>>>
>>> I have a strange problem or might be i am unable to understand
>>> something...
>>>
>>> I have 1 distribution and 1 core switch, all the vlans are terminating to
>>> the distribution switch inshort distribution is their default gateway
>>> same
>>> as for voice VLAN 252 its gateway is distribtution ... well the vlan 1
>>> was
>>> old so thats why it is spanning to the core and core is its default
>>> gateway...
>>>
>>> Well i have to connect one device in the voice vlan but because of
>>> running
>>> short of ethernetports i plug this device into the core and I span the
>>> voice
>>> vlan to the core by allowing vlan 252 on the trunk of distribution and
>>> create vlan 252 on core and allow this in the core L2 trunk and put that
>>> port in the vlan 252.
>>>
>>> As default gateway of vlan 252 is in distribution and DHCP server is in
>>> vlan
>>> 1 and helper address is configured on distribution. But i dont know why
>>> that
>>> device is not getting IP from DHCP server when i put the IP address
>>> manually
>>> it pings everything fine but its not getting IP address from DHCP ... i
>>> know
>>> that its not a good thing what i did but i just wanna know the reason why
>>> this is happening ???
>>>
>>>
>>>
>>>
>>> --
>>> Regards,
>>> M. Faisal.
>>>
>>>
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>>
>
>
> --
> Regards,
> M. Faisal.
>

-- 
Regards,
M. Faisal.
Blogs and organic groups at http://www.ccie.net