Re: [gentoo-user] DHCP and deny clients

[Jigme Datse]

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Jakob wrote:
> 
> 
> On 12/11/06, *Neil Bothwick* <[EMAIL PROTECTED]
> > wrote:
> 
> On Mon, 11 Dec 2006 09:39:14 +0800, Ow Mun Heng wrote:
> 
> > I have a gentoo server and a laptop both running dhcp (server) at
> home.
> > the server serves clients at home.
> > the laptop, serves client at NON-home places.
> >
> > when I plug my laptop into the home, clients will get to my laptop's
> > dhcp server instead of the home server's dhcp.
> 
> You could use the postup(0 function in /etc/conf.d/net to shutdown the
> DHCP server if you are connected to the home network.
> 
> 
> --
> Neil Bothwick
> 
> Windows - software package to turn a 486 into an Etch-A-Sketch!
> 
> 
> Maybe this helps: (from dhcpd.conf.sample )
> # If this DHCP server is the official DHCP server for the local
> # network, the authoritative directive should be uncommented.
> authoritative;
> 
> I think this one schould prefer your local dhcp to the clients at home
> instead of using your notebook.
> correct me if I'm wrong.

It can mean long time outs if the client requests an address that is not
in the pool.  I know I had problems with this, but I think that this
would work for you provided you have everything else set up correctly.

Jigme Datse
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Re: [gentoo-user] DHCP and deny clients

[Jakob]

On 12/11/06, Neil Bothwick <[EMAIL PROTECTED]> wrote:


On Mon, 11 Dec 2006 09:39:14 +0800, Ow Mun Heng wrote:

> I have a gentoo server and a laptop both running dhcp (server) at home.
> the server serves clients at home.
> the laptop, serves client at NON-home places.
>
> when I plug my laptop into the home, clients will get to my laptop's
> dhcp server instead of the home server's dhcp.

You could use the postup(0 function in /etc/conf.d/net to shutdown the
DHCP server if you are connected to the home network.


--
Neil Bothwick

Windows - software package to turn a 486 into an Etch-A-Sketch!


Maybe this helps: (from dhcpd.conf.sample)

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
authoritative;

I think this one schould prefer your local dhcp to the clients at home
instead of using your notebook.
correct me if I'm wrong.

Jakob

Re: [gentoo-user] DHCP and deny clients

[Neil Bothwick]

On Mon, 11 Dec 2006 09:39:14 +0800, Ow Mun Heng wrote:

> I have a gentoo server and a laptop both running dhcp (server) at home. 
> the server serves clients at home.
> the laptop, serves client at NON-home places.
> 
> when I plug my laptop into the home, clients will get to my laptop's
> dhcp server instead of the home server's dhcp.

You could use the postup(0 function in /etc/conf.d/net to shutdown the
DHCP server if you are connected to the home network.


-- 
Neil Bothwick

Windows - software package to turn a 486 into an Etch-A-Sketch!


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Re: [gentoo-user] DHCP and deny clients

[Nick Rout]

On Mon, 11 Dec 2006 09:39:14 +0800
Ow Mun Heng <[EMAIL PROTECTED]> wrote:

> Hi,
> 
> I have a gentoo server and a laptop both running dhcp (server) at home. 
> the server serves clients at home.
> the laptop, serves client at NON-home places.
> 
> when I plug my laptop into the home, clients will get to my laptop's
> dhcp server instead of the home server's dhcp.
> 
> is there a directive which can be used such that I can deny a (specific)
> list of mac addresses from requesting addresses??
> 

2 options afaict:

1. have 2 different runlevels, one starts the server, the other doesn't. Boot 
the relevant one in each situation. Or if you don't reboot, simply change 
runlevels as you go in and out of the house.

2. Get one of those nifty programs that discovers what network you are attached 
to and configures your laptop accordingly. I cannot remember what any of them 
are called sorry.

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