[DHCP] Re: Segment network for wireless

Leslie Rhorer lrhorer at satx.rr.com
Sun Jan 8 02:53:50 UTC 2012

> -----Original Message-----
> From: dhcp-users-bounces+lrhorer=satx.rr.com at lists.isc.org [mailto:dhcp-
> users-bounces+lrhorer=satx.rr.com at lists.isc.org] On Behalf Of Ashley M.
> Kirchner
> Sent: Saturday, January 07, 2012 8:06 PM
> To: Users of ISC DHCP
> Subject: Re: [DHCP] Re: Segment network for wireless
> On 1/7/2012 6:36 PM, Joe Vitti wrote:
> > Disable DHCP on the wireless device and put it in AP mode and all DHCP
> requests will go to the Linux box.
> >
> > You can configure a static for the AP within DHCP so that you can access
> the web config page.
> >
>      Yeah, this is the part I'm trying to figure out.  I can disable the
> DHCP server on the wireless router, but then what ...  I don't know
> where nor how to set it in AP mode.  It's a Netgear WNR2000v3.
>      Right now, it wants to use 10.0.0.x as it's LAN range ...  I can't
> change that either.
>      And, after searching a bit, it looks like the only "other" mode
> this thing has is a "repeater" mode, but then one has to turn off all
> security and the speed drops considerably.  That's coming from Netgear's
> own web site.
>      So, it seems I'm stuck.

	Possibly.  One option would be to change the subnet of your LAN from
192.168.3/24 to 10.0.0/24.  Even that may not be necessary.  If the wireless
router passes all packets fron the wired LAN to the Wireless LAN, then it
isn't.  It is also not necessary if you don't mind having a different
address range for the wired and wireless clients.

	Have you investigated DD-WRT or OpenWrt for your wireless router?

	By the way, I think if I were you I would get rid of the second NIC
and just plug the cable modem into the switch, especially if it is a gigabit
switch and the NIC on your server is also gigabit.  Simply create an IP in
the modem's LAN segment and turn on IP forwarding.

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