Multiple DHCP One Network
Chinmaya S. Narayana Reddy
chinmayareddy at gmail.com
Wed Mar 22 00:14:26 UTC 2006
I have 2 DHCP servers running on my network, please don't ask me why :).
Each DHCP is configured to serve only known-clients, but give away
random IP address (basically STATIC-DHCP).
The IPs do not overlap.
my DHCP1 is configured for 10.1.0.2 to 10.1.0.50 IP range
my DHCP2 is configured for 10.1.0.51 to 10.1.0.200 IP range
DHCP1 serves X number of clients, DHCP2 serves Y number of clients.
Clients configuration (host declaration) on the DHCP servers do not overlap.
I have a DHCP-Client, trying to DHCP via a relay-agent (10.1.0.1), the
relay agent is configured to unicast DHCP packets DHCP1 only.
Client sends DHCP discover, DHCP1 sends DHCP-offer,
Client sends DHCP REQUEST to DHCP1
DHCP1 sends ACK, before client gets DHCP ACK, DHCP2 sends NACK to client.
Now why did DHCP2 respond? Well I guess it did so because it had the
subnet configured !! I removed the subnet definition from DHCP2, now I
don't see NACK.
Can anyone please tell me is DHCP2's behavior acceptable?
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