[Cialug] DHCP Relay

[Dave Weis]

Nathan C. Smith wrote:
> in other words, the DHCP server itself is smart enough to lease the
> addresses on the remote subnet to the local subnet?

Yes, it sees the IP of the interface on the far router and looks in that 
subnet declaration for the correct address.

> -----Original Message-----
> From: Dave Weis [mailto:djweis@internetsolver.com] 
> Sent: Monday, January 24, 2005 3:09 PM
> To: cialug@cialug.org
> Subject: Re: [Cialug] DHCP Relay
> 
> 
> 
> 
> Nathan C. Smith wrote:
> 
>>I'm just looking to DHCP relay.
>>
>>If I want to relay DHCP across a VPN to a remote network.  How does 
>>the DHCP server know not to distribute the remote addresses on the 
>>local network? Will it only give IP addresses out that are consistent 
>>with the settings of the connected network interface?
> 
> 
> There are a couple ways. If you have a cisco at the far end, you put 
> something like
> ip helper-address x.x.x.x
> in the interface config of the interface that will be receiving the 
> bootp requests.
> 
> Set up a new subnet on your dhcp server containing the network on the 
> far ethernet interface and you are all set.
> 
> dave
> 
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