Olá amigos... andei pesquisando mais fiquei parado aqui!
root@servernet:~# /etc/init.d/isc-dhcp-server start
* Starting ISC DHCP server dhcpd * check syslog for diagnostics.
[fail]
no meu /var/log/syslog tem:
Mar 14 09:58:01 servernet dhcpd: Copyright 2004-2010 Internet Systems Consortium.
Mar 14 09:58:01 servernet dhcpd: All rights reserved.
Mar 14 09:58:01 servernet dhcpd: For info, please visit
https://www.isc.org/software/dhcp/Mar 14 09:58:01 servernet dhcpd: Internet Systems Consortium DHCP Server 4.1.1-P1
Mar 14 09:58:01 servernet dhcpd: Copyright 2004-2010 Internet Systems Consortium.
Mar 14 09:58:01 servernet dhcpd: All rights reserved.
Mar 14 09:58:01 servernet dhcpd: For info, please visit
https://www.isc.org/software/dhcp/Mar 14 09:58:01 servernet dhcpd: Wrote 0 leases to leases file.
Mar 14 09:58:01 servernet dhcpd:
Mar 14 09:58:01 servernet dhcpd: No subnet declaration for eth2 (no IPv4 addresses).
Mar 14 09:58:01 servernet dhcpd: ** Ignoring requests on eth2. If this is not what
Mar 14 09:58:01 servernet dhcpd: you want, please write a subnet declaration
Mar 14 09:58:01 servernet dhcpd: in your dhcpd.conf file for the network segment
Mar 14 09:58:01 servernet dhcpd: to which interface eth2 is attached. **
Mar 14 09:58:01 servernet dhcpd:
Mar 14 09:58:01 servernet dhcpd:
Mar 14 09:58:01 servernet dhcpd: Not configured to listen on any interfaces!