firewall ??

[Jason Costomiris]

On Jul 2, 2004, at 3:47 PM, Ow Mun Heng wrote:

>> 1.  Install the dhcp package and configure the /etc/sysconfig/dhcrelay
>> file, then:
>>
>> chkconfig dhcrelay on
>> service dhcrelay start
>
> man dhcrelay
>        The DHCP Relay Agent listens for DHCP and BOOTP queries and  
> responses.
>        When  a  query  is  received from a client, dhcrelay forwards 
> it to the
>        list of DHCP servers specified on the command line.  When  a  
> reply  is
>        received  from  a  server, it is broadcast or unicast 
> (according to the
>        relay agent’s ability or the client’s  request)  on  the  
> network  from
>        which the original request came
>
> Hmm.. from what i read, this isn't really necessary is it? It only 
> states that it's necessary if
> you have more than 1 dhcp server and they're on diff networks etc. or 
> if the dhcp server is
> down and thus needs to be forwarded to the backup one.
>
> Other than that, I don't see why you need this.
>
> Can you please explain?
>


His post seemed to be suggesting that there was already a DHCP server 
elsewhere in the network, presumably on the other side of the firewall, 
which would be why he'd need dhcp relay, in the form of dhcrelay.  
That's all...

--j