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Re: [vox-tech] 2 dhcp servers, one box
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Re: [vox-tech] 2 dhcp servers, one box

I think you can configure dhcp to give out of 2 different address ranges 
based on the network the request came in on. Check out the man page for 

I just checked and I'm running isc's dhcpd

hope it helps...

Here's the syntax (base on my dhcpd.conf and your information):

server-identifier houston;
default-lease-time 86400;
max-lease-time 172800;
option domain-name-servers;
option domain-name	"mrdoug.com";
option subnet-mask;
subnet netmask{
	option broadcast-address;
	option routers		$ip_of_the_nic_for_this_network
subnet netmask{
	option broadcast-address;
	option routers		$ip_of_the_nic_for_this_network


Today, Matthew Holland spewed forth:

> Does anyone have any experience running multiple dhcp servers out of one 
> box?  Allow me to clarify... I have a box with three network cards: eth0 
> is connected to the DSL modem, eth1 to a network 
> (MASQed), and eth2 will be connected to a network (which 
> I also intend to MASQ).  There are various cabling considerations that 
> have made this arrangement seem sensible.  I'm running dhcpd on eth1, 
> because there are as many laptops in the house as desktops.  The 
> potentially tricky part is that I installed eth2 so that I can plug my 
> laptop into it when I'm in the same room as the router.  This makes it 
> appealing to run dhcpd on eth2 as well, so that I don't have to do any 
> funny voodoo every time I plug the laptop into a different network.
> That said, there may be some voodoo to do concerning the configuration 
> of dhcp.  There's no issue of overlapping blocks of addresses since the 
> networks are different.  The question is, do I need multiple copies of 
> dhcpd.conf and dhcpd.leases, or can two daemons share the same files?  I 
> imagine it's possible that both subnets could be defined in the same 
> dhcpd.conf, since each instance of dhcpd should know which network it's 
> on.  But then again, it may not work that way.
> Any other gotchas that I should be aware of?  In case it matters, the 
> machine is running Gentoo Linux.
> Thanks,
> Matt
> _______________________________________________
> vox-tech mailing list
> vox-tech@lists.lugod.org
> http://lists.lugod.org/mailman/listinfo/vox-tech

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