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Topic: DHCP on additional LAN IP?  (Read 608 times)
« on: September 16, 2014, 10:00:14 »
hpr *
Posts: 7

Dear all

Obviously, there's the option to add a second subnet on the LAN interface.
Is there any chance to add DHCP reservations (not a free range) to this second subnet?

Scenario:

LAN1 192.168.1.1/24,
DHCP Range 192.168.1.101-192.168.1.200
PC-1 aa:bb:cc:dd:ee:ff 192.168.1.51
PC-2 00:aa:bb:cc:dd:ee 192.168.1.52

on the SAME subnet/broadcast domain

LAN2: 192.168.11.1/24

Printer1 bb:cc:dd:ee:ff:00 192.168.11. 22
AP3: cc:dd:ee:ff:00:11 192.168.11.203

The issue is that I cannot predict on a certain switchport whether a PC or any other device or a BYO (taking a free range IP) will be connected.

And no, due to other limitations in the network, I cannot make just one /23 or greate subnet. Wink

Any help is appreciated.

Best regards,
Hanspeter
« Last Edit: September 16, 2014, 10:02:17 by hpr »
« Reply #1 on: September 19, 2014, 00:37:16 »
Lee Sharp *****
Posts: 517

You can not have two DHCP servers on the same collision domain.  And there is no way I know of to use DHCP to assign outside of the scope without using DHCP passthrough and some kind of identifier.  And the DHCP in m0n0wall is even more limited.  You may need to get a switch with vlans and do vlan tagging.
« Reply #2 on: September 19, 2014, 07:47:04 »
hpr *
Posts: 7

Thanks, Lee!

Basically the answer I feared to hear.  Grin
 
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