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Old 04-27-2012, 08:50 AM   #1
Registered: May 2010
Location: Eindhoven
Distribution: ubuntu/debian
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isc-dhcp-server issue, not broadcasting on eth0:1


On a server that provides dhcp services to a few client pc's I have 3 subnets:, and
the server has 2 virtual interfaces and one hardware interface for these subnets.
I want to seperate hosts on the network and use the and only for known devices. I have their mac addresses and they have a static lease in the dhcp config file. For the unknown hosts I have the network.

The problem I had is that the unknown hosts only get their IP assigned through dhcp if I configure on the hardware interface. for the other networks it works fine to get a dhcp lease if I configure the ip on the virtual interface.

Why doesn't the server hand out ip addresses to untrusted hosts (should get a 192.168.2.x ip) while it does for trusted hosts when the IP address of the hardware interface isn't in the same subnet?

I hope I've made the problem clear, it was quite hard to do...

I'd like to understand this.

thnx in advance,

Old 04-29-2012, 07:12 PM   #2
Registered: Mar 2010
Location: Moscow, Russia
Distribution: Ubuntu Studio, antix(mepis), Fedora, FreeBSD
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Originally Posted by Steviepower View Post

I hope I've made the problem clear...

Will be more clear with your config file.
Old 05-30-2012, 04:32 AM   #3
Registered: May 2010
Location: Eindhoven
Distribution: ubuntu/debian
Posts: 152

Original Poster
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What config file are you referring to? Networks? dhcp config?



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