By default, most routers do not forward DHCP packets. With Cisco routers you
can set the "ip helper-address" to point to the IP address of the DHCP
server at your site. That way when a client at your remote site
(192.168.2.0/24) issues a DHCP broadcast, the router will forward that
packet to the IP address specified by the helper-address (the DHCP server).
The key to making this work is to be sure you have all DHCP scopes defined
for all subnets, especially the local scope for each subnet. ie the default
route for each subnet needs to be listed as local. I have actually set this
up using Cisco routers and it works great. Although, I eventually installed
a DHCP server at each site. I got tired of thinking about having all my eggs
in one basket. WAN circuits do go down every now and then.
If you are using Cisco routers to connect your offices together over Frame,
Check out this site on Cisco.
http://www.cisco.com/warp/public/779/smbiz/service/knowledge/tcpip/dh...
Steve Cowles
SWCowles at gte dot net
Quote:> Hello.
> I have successfully enabled DHCP at one site and would like to use DHCP
> from the same server to our other sites. Our other sites are connected
> via routers / Frame-Relay and they are using a private ip number.
> Currently our subnet is
> 192.168.1.1 (our router) - 192.168.1.254
> Our other sites are
> 192.168.2.1 (our router) - 192.168.1.254
> 192.168.3.1 (our router) - 192.168.1.254
> Please help!
> If possible please e-mail me.
> Thank you.
> Sent via Deja.com http://www.deja.com/
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