Default Gateway via DHCP

[Daniel L. Miller]

Lamar Milligan wrote:
>   
>> -----Original Message-----
>> From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org]On
>> Behalf Of Simon Hobson
>> Sent: Friday, August 08, 2008 2:30 AM
>> To: dhcp-users at isc.org
>> Subject: Re: Default Gateway via DHCP
>>
>>
>> Daniel L. Miller wrote:
>>
>>     
>>>> 192.168.0.1 doesn't appear anywhere in your config file, so I would
>>>> first suspect a second DHCP server.
>>>>
>>>>
>>>>         
>>> I don't have one.  It IS the default gateway based on standard IP
>>> address schemes - I'm trying to override that.
>>>
>>> I believe my dynamic clients are setting the gateway appropriately.
>>> It's the statics that are giving me trouble.
>>>       
>
> Have you tried your "option routers" statement as a global declaration?
> Just a thought.
>
>   
>> In DHCP terms there is no such thing as 'standard addressing scheme'
>> - if the clients are showing a particular gateway address then it was
>> either configured locally or obtained from the DHCP server. If the
>> address isn't in the DHCP server config then it didn't come from THIS
>> DHCP server.
>>     

I'm using the DHCP server to provide services to both local LAN clients 
and remote VPN clients.  I'm using the classes specifically to prevent 
changing default gateways and dns servers.  So global definitions would 
not be desirable.

Regarding my "standard addressing", my understanding is given a typical 
IP address, the initial address of that subnet is the default gateway.  
Tools such as ifconfig perform this way - I don't know at what level 
this behavior is defined.
-- 
Daniel