I have a Linux box running Redhat 6.0 and I seem to be having problems with
my DHCP server.
I have done as much research into the problem as my time allows (which is
less than I would prefer before asking for help. I am a one-man show at a
small college).
We have several class C networks one of which I intend to use as the IP pool
for the DHCP server.
The primary IP for this server is xxx.xxx.38.8 with additional IPs of
xxx.xxx.37.8, xxx.xxx.39.8.
The dhcp.lease file seems to indicate that the server is working but clients
never obtain their address.
I have seen HP printers obtain an IP with one attempt while Windows and Mac
clients either take 20-30 attempts or never succeed with random exceptions.
I did have two network adapters in the machine until a few days ago when I
removed one. The machine's configuration has changed a bit since then,
however, clients have never obtained IPs successfully with either two cards
or now with just one.
I have tried every idea I could come up with but am at the end of my ideas.
All ideas and suggestions will be both welcome and appreciated.
If you need any additional info that may help solve the problem just ask.
Please cc me personally so I'll be sure to see the messages. I sometimes
don't read all my mail from the mailing lists.
Thanks for your time and help,
Jack Elliston
Here is the dhcp.conf file:
=============================
subnet xxx.xxx.39.0 netmask 255.255.255.0{
range xxx.xxx.39.20 xxx.xxx.39.20;
default-lease-time 14400;
max-lease-time 28800;
option domain-name "benedictine.edu";
option domain-name-servers ns1.benedictine.edu,
ns2.benedictine.edu;
option routers xxx.xxx.39.254;
option subnet-mask 255.255.255.0;
}
subnet xxx.xxx.38.0 netmask 255.255.255.0{
range xxx.xxx.38.252 xxx.xxx.38.252;
default-lease-time 14400;
max-lease-time 28800;
option domain-name "benedictine.edu";
option domain-name-servers ns1.benedictine.edu,
ns1.benedictine.edu;
option routers xxx.xxx.38.254;
option subnet-mask 255.255.255.0;
}
subnet xxx.xxx.37.0 netmask 255.255.255.0{
range xxx.xxx.37.150 xxx.xxx.37.230;
default-lease-time 14400;
max-lease-time 28800;
option domain-name "benedictine.edu";
option domain-name-servers ns1.benedictine.edu,
ns2.benedictine.edu;
option routers xxx.xxx.37.254;
option subnet-mask 255.255.255.0;
}
==========================
The output of route:
/etc#> # route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
255.255.255.255 * 255.255.255.255 UH 0 0 0 eth0
xxx.xxx.38.8 * 255.255.255.255 UH 0 0 0 eth0
xxx.xxx.38.0 * 255.255.255.0 U 0 0 0 eth0
xxx.xxx.39.0 * 255.255.255.0 U 0 0 0 eth0
xxx.xxx.37.0 * 255.255.255.0 U 0 0 0 eth0
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default router1.benedic 0.0.0.0 UG 0 0 0 eth0
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