Novell ZENWORKS LINUX MANAGEMENT 7.2 IR2 - ADMINISTRATION GUIDE 09-25-2008 Administration Manual page 362

Information
Disadvantages
Configuring LAN Environments for Preboot Services
For the case where you have Preboot Services and DHCP running on separate servers, no network
configuration is required.
For the case where you have Preboot Services and DHCP are running on the same server, option tag
60 must be set on the DHCP server. Do the following to set up standard DHCP and Proxy DHCP on
the same server:
1 Stop the DHCP services on the Linux imaging server.
2 On this server, open the dhcp.conf file in an editor.
3 Insert the following line in the file:
option vendor-class-identifier "PXEClient";
4 Save the file.
5 Restart the DHCP service.
Configuring a WAN/VLAN with Preboot Services and DHCP Running on the Same Server
You can install ZENworks Linux Management (which includes Preboot Services) on the same
server where DHCP is installed and running. However, you must do the following to make it work:
Set option tag 60 on the DHCP server so that it can work with the novell-proxydhcp daemon.
See the steps in the previous section
on page
On the Linux server, edit the /etc/opt/novell/novell-proxydhcp.conf file and
change:
LocalDHCPFlag = 0
to
LocalDHCPFlag = 1
Then restart the daemon so that the change is recognized by entering the following command
on the Linux server:
/etc/init.d/novell-proxydhcp restart
IMPORTANT: If the switch is acting as a firewall and limiting the type of traffic on the network,
understand that the novell-tftp and novell-zmgprebootpolicy daemons are not firewall or network
filter friendly. You should not attempt to run these daemons through a firewall. If users need to pass
preboot work through a firewall, then all Preboot Services work needs to be on the outside and
merely reference a Web service inside the firewall.
362 Novell ZENworks 7.2 Linux Management Administration Guide
On the Same Server
DHCP server configuration required
(option tag 60).
Only one Preboot Services imaging
server can be installed because it
needs to run on the same server as
the DHCP server (and there is
usually only one DHCP server).
362).
On Separate Servers
The network equipment (routers/
switches) must be configured with
additional IP helpers. Some network
equipment might not function
properly when more than one
additional IP helper is configured.
("Configuring LAN Environments for Preboot Services"