On 7/16/07, Thomas Jacob wrote:
What makes you think that your router passes on DHCP requests?
Because computers connected to the modem will obtain a Linksys DHCP range, and computer's connected to a Linksys router may obtain a modem DHCP. I have a DSL modem/router at the terminal end of a chain of Linksys routers, and the modem is not very configurable. I need to block DHCP at the Linksys so the modem is invisible to the routers. I tried disabling DHCP on the modem, but it has a server running from it and the server requires DHCP to be running. I could let the router handle the server's DHCP request, but then I would need to have another device on the UPS battery. I want to have only two devices taking power from the UPS battery, the modem and the server. Any help to solve this problem with software would be greatly appreciated. These routers are Linksys WRT54GL with BusyBox v1.6.0 and iptables v1.3.7.
On the contrary, one usually does have to put in a bit of effort to allow dhcp over routers (=> dhcp relay)...
In the BusyBox setup, DHCP broadcast is on by default, and apparently a little hard to disable. -- Gnarlie
