Fedora breaks dhcpd, RH9 doesn't?

Nejaa Halcyon nejaa at racc2000.com
Wed Dec 10 13:42:18 UTC 2003


Andy,
Something that jumps out at me is that you are using two different local 
IP ranges on eth0.

IE: dhcpd is passing out IPs on 192.198.0.X but your LAN-side NIC is on 
the 10.1.1.X range. I'm not sure what this will result in, but I know its 
not making life easy for your LAN.

I would try changing your LAN-side NIC to 192.168.0.1, this would also fix 
another issue I see with your configs: the "options routers" statement in 
dhcpd.conf needs to match the IP address of your LAN-side NIC.

If I were you, I'd move that IP over to 192.168.0.1 then test you LAN 
connection without using dhcp. Assign a client workstation a static IP 
address (outside of your dhcp pool, but still on the same subnet, IE 
192.168.0.51), default gateway: 192.168.0.1, DNS if you want to. Try to 
ping your fedora box's LAN-side nic from the static workstation, then try 
the WAN NIC on your linux box (to test your IP-Masq (assuming that's what 
you're doing) ). Basically, I'd get everything working without dhcp first, 
then add the convenience of dhcp after it's working statically.

Hope that helps,
Nejaa


On Wed, 10 Dec 2003 12:32:12 +0200, <andrew.crofts at nokia.com> wrote:

> Hi
>
> Synopsis - install RH9, dhcpd works, gives out addresses.
> Install or upgrade to Fedora Core 1, dhcp no longer gives addresses. 
> Repeatable (two RH 9 installs, 2 Fedora installs, one RH9-FC1 update 
> from CD's)
>
> Note: I've even tried removing FC1's dhcpd, installing RH9 'version' - 
> still bad.
> Tried "turn off kudzu" 'trick' - same.
>
> System: Compaq 600 Deskpro, 192 meg ram. Machine used as gateway to 
> internet/ firewall/ webserver/ dhcp server.
> Network cards: Eth0 is e100 (intel) connected via pppoe /vDSL. Network 
> set to (as per instructions 10.1.1.1)
> Eth1 is using 3c59x driver. Connected to internal network (which does / 
> does not send addresses to 2 other machines via a hub)
>
> Same configuration files used with both RH9 and FC1.
>
> Config files:
>
> Here's /etc/sysconf/dhcpd:
> #########################
> # Command line options here
> DHCPDARGS=eth1
> ##########################
>
> Here's /etc/dhcpd.conf
> ###########################
> ddns-update-style ad-hoc;
> ignore client-updates;
>
> # home net
> subnet 192.168.0.0 netmask 255.255.255.0 {
> option routers 192.168.0.1;
> option broadcast-address 192.168.0.255;
> option ip-forwarding off;
> option subnet-mask 255.255.255.0;
> option domain-name-servers 194.157.175.2, 194.157.175.3;
> range 192.168.0.10 192.168.0.50;
> default-lease-time 86400;
> max-lease-time 86400;
> }
> #########################
> and dhcpd.conf.lock:
> 1335
>
> Iifcfg-eth0:
> #####################
> [root at host root]# less /etc/sysconfig/network-scripts/ifcfg-eth0
> DEVICE=eth0
> BOOTPROTO=static
> BROADCAST=10.1.1.255
> IPADDR=10.1.1.1
> NETMASK=255.255.255.0
> NETWORK=10.1.1.0
> ONBOOT=yes
>
> Ifcfg-eth1:
> ####################
> DEVICE=eth1
> BOOTPROTO=static
> BROADCAST=192.168.0.255
> IPADDR=192.168.0.1
> NETMASK=255.255.255.0
> NETWORK=192.168.0.0
> ONBOOT=yes
>
> I've no idea what the dhcpd.conf.lock does - no mention of it in the 
> (lengthy) documentation...
>
> As I say, above files are same for both installations...
> Any ideas greatfully received.
> -Andy
>
>
>
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