Ubuntu Server in VM - DHCP Server not working Post: 302958247

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Operating Systems Linux Ubuntu Ubuntu Server in VM - DHCP Server not working Post 302958247 by Portuguevos on Tuesday 20th of October 2015 12:24:30 PM

10-20-2015

Registered User

Ubuntu Server in VM - DHCP Server not working

Hello.
Doing my first steps in Linux and while trying to configure a DHCP server in Linux i encountered some problems:

TOPOLOGY:

- Laptop with Windows 8.1
- VM Player 12 with Linux installed (Ubuntu Server 14.04)
- ICS-DHCP-SERVER installed and running
- Another LAPTOP conected to a switch to verify IP discover.

The problem i have is that neither my windows or whatever device i connect can receive IP from Linux DHCP server.

VM WARE CONFIGURATION:
I selected bridge mode in the custom configuration: Vmnet0 which is bridge mode.

WINDOWS CONFIGURATION:
- IN DHCP cliente activated i do not receive anything. For test purpose i configured a static IP: 192.168.2.10/24 and the gateway of my router 192.168.2.1.

LINUX CONFIGURATION:
My ethernet card is named eth0.
A) ICS-DHCP-SERVER
editing /etc/dhcp/dhcp.conf i left all lines as they were having:

Code:

ddns-update-style none;
option domain-name "example.org";
option domain-name-servers ns1.example.org, ns2.example.org;

default-lease-lite 600;
max-lease-time 7200;
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.2.255;
option routers 192.168.2.1;
option domain.name-servers 8.8.8.8, 8.8.4.4;

subnet 192.168.2.0 netmask 255.255.255.0 {
range 192.168.2.150 192.168.2.170;}

authorative;

Since this VM will be my DHCP Server i configured a static IP in my NIC. So editing /etc/network/interfaces i configured:

Code:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 192.168.2.5
netmask 255.255.255.0
network 192.168.2.0
broadcast 255.255.255.255
gateway 192.168.2.1

TESTS:
- Having static IP in my Windows and in Linux insidw VM i have ping. - Ping OK against 8.8.8.8 from both machines.
- My windows do not receive IP from VM DHCP Server.
- If i change the configuration from my ETH0 interface and configure it with DHCP instead of static IP, the ICS-DHCP-SERVER does serve an IP correctly.
- Windows with firewall deactivated. No antivirus.
- Ubuntu firewall ufw disabled.
- In summary DHCP Server is not working outside of VM.
I already tried (since nothing works) configuring the network adpater in bridge mode, NAT, and nothing works.

Can somebody help with some idea i am not considering?

THank you so much.

Portuguevos

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LEARN ABOUT LINUX

dhcpmgr

dhcpmgr(1M)                                               System Administration Commands                                               dhcpmgr(1M)

NAME

       dhcpmgr - graphical interface for managing DHCP service

SYNOPSIS

       /usr/sadm/admin/bin/dhcpmgr

DESCRIPTION

       dhcpmgr  is a graphical user interface which enables you to manage the Dynamic Host Configuration Protocol (DHCP) service on the local sys-
       tem. It performs the functions of the dhcpconfig, dhtadm, and pntadm command line utilities. You must be root to use dhcpmgr.  The  dhcpmgr
       Help, available from the Help menu, contains detailed information about using the tool.

USAGE

       You can perform the following tasks using dhcpmgr:

       Configure DHCP service

           Use dhcpmgr to configure the DHCP daemon as a DHCP server, and select the data store to use for storing network configuration tables..

       Configure BOOTP relay service

           Use dhcpmgr to configure the DHCP daemon as a BOOTP relay.

       Manage DHCP or BOOTP relay service

           Use dhcpmgr to start, stop, enable, disable or unconfigure the DHCP service or BOOTP relay service, or change DHCP server parameters.

       Manage DHCP addresses

           Use dhcpmgr to add, modify, or delete IP addresses leased by the DHCP service.

       Manage DHCP macros

           Use dhcpmgr to add, modify or delete macros used to supply configuration parameters to DHCP clients.

       Manage DHCP options

           Use dhcpmgr to add, modify or delete options used to define parameters deliverable through DHCP.

       Convert to a new DHCP data store

           Use  dhcpmgr  to  configure the DHCP server to use a different data store, and convert the DHCP data to the format used by the new data
           store.

       Move DHCP data to another server

           Use dhcpmgr to export data from one Solaris DHCP server and import data onto another Solaris DHCP server.

EXIT STATUS

       The following exit values are returned:

       0               Successful completion.

       non-zero        An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWdhcm                     |
       +-----------------------------+-----------------------------+
       |Interface Stability          |Evolving                     |
       +-----------------------------+-----------------------------+

SEE ALSO

       dhcpconfig(1M), dhtadm(1M), pntadm(1M), in.dhcpd(1M), dhcpsvc.conf(4), dhcp_network(4), dhcptab(4), attributes(5), dhcp(5), dhcp_modules(5)

       Solaris DHCP Service Developer's Guide

       System Administration Guide: IP Services

SunOS 5.10                                                          13 Mar 2001                                                        dhcpmgr(1M)

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