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I have an eth0 and eth1, eth0 has dynamic IP-address and on eth1 I setup static IP-address:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto eth1
iface eth1 inet static
address 10.10.0.1  
netmask 255.0.0.0   
gateway 10.10.0.1

and then I setup the isc-dhcp-server Install isc-dhcp-server with the following command:

INTERFACES="eth1"

Finally... I went to this one /etc/dhcpd.conf with the following command:

default-lease-time 650;

max-lease-time 79520;

option subnet-mask 255.0.0.0;
option broadcast-address 10.10.0.255;
option routers 10.10.0.2;

subnet 10.10.0.0 netmask 255.0.0.0

{

range 10.10.0.10 10.10.0.250;

}

When I try to sudo /etc/init.d/isc-dhcp-server start, I get start: Job failed to start

Anyone knows whats wrong?

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2 Answers 2

up vote 3 down vote accepted

You cannot have an 8 bit subnet mask an then use the network 10.10.0.0 your subnet should be 10.0.0.0 or change your mask to 255.255.0.0 the later being an illegal subnet.

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What does /var/log/syslog say?

isc's dhcpd is a bit picky in terms of the ip subnet parsing and ignoring bits. Suspect that the following may help in your setup: subnet 10.0.0.0 netmask 255.0.0.0 ^^^

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