dhcp

[MarkDome]

Hi,

I must manage a network for my company, a local network.
There is a server with a website on it, and every client may visit that paste.
But such i say, its local, so no network availible.

the situation is like this:

Head1
- department 1
- department 2

Head2
- department 2
- department 3

such you can see, if some client from department 1, want connect to Head2 (the server) he can choose the way, first to Head1 then to Head2, of first to department2 then to Head2.

Such i say, there is no connection and configure my DHCP failed.

I've done all the things on this site:
howto configuring the dhcp server at linux home networking.
I'm not be able to enter a url.

I hope someone can answer me and help me with the problem

[voidpointer]

Perhaps you have a routing/resolving problem.

Have you established that you can get to a Head1 machine from a Head2 client?

Try "ping"ing. What happens.

Look to see if you there is a route available at both Head1 and Head2 to and from each other's network.

[MarkDome]

Such I say, there is no internet.

Head 1 and Head 2 are switches with glasscable to each other, but they are not connected to the internet, no IP. So i must create a own network, i thought it was possible with dhcp, but such i say that wont configure.

[Lazydog]

I'm not be able to enter a url.

When you say url are you talking IP or domain?

If you are trying to use a Domain name then you are going to have to do 1 of 2 things.

1. Setup a DNS server to host your domain
2. Correctly configure your HOSTS file to have the server listed.

If you are using an IP address then you should ping the server from the client. If that isn't working then traceroute to the server and see where things are being stopped/dropped and figure out why.

[MarkDome]

I'll try to explain all things better what i said.

the head switches Cisco catalyst 6509 2 times

one for head1
one for head2
Head1 and head2 are connected to eachother with 2 glasscable

the departments are Cisco catalyst 3550
one for department1
one for department2
one for department 3

department1 is connected to head1 and head2 with glascable and one utp cat6 cable
department3 is connected to head1 and head2 with glascable and one utp cat6 cable
department2 is connected to head1 and head 2 with an upt cat6 cable
department1 and department3 are connected with an utp cat6 cable

they are all in connected with themself, but not with the internet.
So what i must do is connect the switch to a computer and that must be the server. But if i walk through this tutorial www . yolinux.com/TUTORIALS/DHCP-Server . html
and type in the terminal service dhcpd start it says failed.

the server must gave IP to each PC that is connected to the departments.

if that works than i must try to install and configure OSPF and SNMP but before that it would be nice to can ping from pc1 from department1 to pc5 from department3 or something like that

I hope you will understand it now a bit better

[Lazydog]

OK, we are getting away from Linux here. You can configure either the 6509's or the 3550's to server DHCP addresses.

If you want to use a linux box as your DHCP server then you have to configure helper addresses on your routers that point to the linux box.

If using a linux box for DHCP and the 3550's are being deployed as routers you will need to confgure the helper address on it. If they are simple layer 2 then the helper addrsses need to be configure on the 6509's.