Very Computer

hi!

Is there any way to offer DHCP services from a redhat 4.2 machine that
has two Ethernet cards?  I wanted to offer clients on eth1 DHCP leases
for surfing, etc...

I am currently looking at ISC's DHCP server  Beta 5 Patch level 16

Just curious

Geoff Shukin

Hi,

ISC DHCP server does what you like it to do. Get the newest version
and make sure you have a newer (the newest) 2.0.x kernel. The README
of the package tells all.

PAtrick Reijnen

I have compiled the latestes ISC DHCP Server DHCPD-BETA-5.16.tar.gz; this
application will not function on Linux with more than one network
interface.  Sorry, but I am looking for the same thing, this one will not
fit the bill.  Let me know if you find something.

I've been able to get ISC's dhcpd working with two Ethernet interfaces, but
only with some serious constraints. Still, this may fit your bill:

I've got an internal network with several Win95 clients, including a
notebook that moves between home and work. I want to use dhcp to issue the
notebook an address so I don't have any reconfiguration issues when I move
it about.

The second Ethernet card is connected to a cable modem. This port (eth1) is
supposed to use dhcp *client* to get an address, but that's a WHOLE 'nother
story. I've configured it with a static IP address for the time being.

Although ISC's dhcpd (sorry, no version handy, but it was the latest RPM
from RedHat as of a month ago) allows specification of a port when invoked,
it happily assigns addresses out both ports. Fortunately, I noticed this in
the system log before anyone complained, but I was handing out 192.168.0.x
to some of my neighbors for a few seconds.

I wound up configuring dhcpd to use eth0, then simply blocking inbound
requests on eth1 using ipfwadm. Since I have a filtering firewall
configured, that's not a problem. If you just want a simple setup, this may
work. If you need to assign distinct IP addresses out each port, it won't.
Also, running dhcp *CLIENT* on eth1 winds up picking up an address meant for
eth0, so I'll need a better long term fix once I resolve the dhcp client
issues.

Hope this helps!

- Bob

Quote:>I have compiled the latestes ISC DHCP Server DHCPD-BETA-5.16.tar.gz; this
>application will not function on Linux with more than one network
>interface.  Sorry, but I am looking for the same thing, this one will not
>fit the bill.  Let me know if you find something.

 Les Mikesell

/Johan Andersson