Friday, April 28, 2006


DHCP Trouble. (Question #62)

Consider three routers named HOST, RELAY and DHCP-SERVER connected as in the following topology

HOST e0 ---- e0 RELAY e1 ---- e0 DHCP-SERVER

It is seen that the HOST which is configured to obtain the IP address for its ethernet0 interface using DHCP is failing to successfully get its address. Given the following configuration for the three routers in question, can you figure out what the problem is?


interface Ethernet0
ip address dhcp


interface Ethernet0
ip address
ip helper-address
interface Ethernet1
ip address
ip forward-protocol udp bootpc
ip forward-protocol udp bootps


ip dhcp excluded-address
ip dhcp pool NET10
interface Ethernet0
ip address

Maybe you need a route from the DHCP server to subnet
Yes, that's the right answer Rich.
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