Problem dhcp multi scope

[151569]

Hi

I have one DHCP server with two scope configured, first for sub-net 192.168.2.0/24 and second 192.168.3.0/24, the one sub-net in segment isolated , exist one router Linux installed dhcrelay that forward packet DHCP of segment (192.168.3.0) for DHCP server Windows 2003 , but don't work, why ??

Thanks

 

[elmurado]

Does it depend on how many interfaces you have?

 

[151569]

In server dhcp only one interface that sub-net 192.168.2.0 , In router have two interfaces, one for subnet 192.168.3.0 and other subnet 192.168.2.0, why ?

 

[theravager]

Theres no reason to have a multiscope in this scenario. You use a multiscope/superscope when the clients are intermixed on the same physical segment.

Just make sure you have ip helper address a dhcp relay agent on each subnet pointing to the dhcp server.

 

[151569]

Hello

But I need two sub-net and only dhcp server , how make work dhcp relay agent ?

Thanks

 

[theravager]

Pretty much just configure the relay agent to point to the ip address of the dhcp server. It basically tags the dhcp request with the local subnet and the dhcp server uses that to assign an address out of the correct scope.

If your router supports ip helper addresses on the segments this is basically the same thing but done via the router.

 

[151569]

Ok, good idea, You know some link that explain how make this ?

Thanks.

 

[theravager]

Depends what o/s you are using do a search on configure dhcp relay agent for the o/s in question.

If its a router then you will need to check the documentation for the brand of router as they all use thier own command foramt