I've successfully got LTSP working on one of my servers. I can connect a
PC to the same switch and boot up with either a boot disk or using PXE.
But I am unable to get a thin client to work that is sitting on another
network segment. I've put a dhrelay on a PC on the other network
segment. When I turn on the thin client, it successfully gets an ip
address but it never loads the linux kernel from the LTSP server. 
I get this when I boot up the thin client:
MAC Address = 00:50:04:1C:CF:46
Connectors present: 10Base-T / 100Base-TX.
Searching for server (DHCP)...
..Me: 10.5.112.50, Server: 10.5.107.10, Relay: 10.5.112.226, Gateway
10.5.112.1

Then it just sits at the line where it says Loading
10.5.107.10:/lts/vmlinuz-2.4.22-ltsp-1 ......

Anyone successfully got LTSP to work over multiple network segments?

Here's my dhcpd.conf file that is used on the server:

option domain-name-servers 10.1.1.2;
option broadcast-address 10.5.107.255;
option subnet-mask 255.255.255.0;
option routers 10.5.107.1;
option root-path "10.5.107.10:/opt/ltsp/i386";

ddns-update-style ad-hoc;
# Shared Network Description
shared-network Workstations {
        allow unknown-clients;
        # 10.5.112.x Network Segment
        subnet 10.5.112.0 netmask 255.255.255.0 {
                option domain-name-servers 10.1.1.2;
                option broadcast-address 10.5.112.255;
                option subnet-mask 255.255.255.0;
                option routers 10.5.112.1;
                allow unknown-clients;
                pool {
                        range 10.5.112.50 10.5.112.51;
                        }
                }
        # Test Host Computer
        host ws001 {
                filename "/lts/vmlinuz-2.4.22-ltsp-1";
                hardware ethernet 00:50:04:1c:cf:46;
                fixed-address 10.5.112.50;
                }
        }

        host ws002 {
                hardware ethernet 00:50:DA:77:A7:B4;
                fixed-address 10.5.107.32;
                if substring (option vendor-class-identifier, 0, 9) =
"PXEClient" {
                  filename "/eb-5.2.2-3c905c-tpo.zpxe";
                }
                else if substring (option vendor-class-identifier, 0, 9)
= "Etherboot" {          filename "/lts/vmlinuz-2.4.22-ltsp-1";
                }
}
# RH Test DHCP server
subnet 10.5.107.0 netmask 255.255.255.0 {
        max-lease-time 21600;
        default-lease-time 21600;
        pool {
                allow unknown-clients;
                range 10.5.107.20 10.5.107.30;
                }
        allow unknown-clients;
        }

-- 
Jeff Self
Dept. of Information Technology
City of Newport News
(757)926-3741



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