[anonymous123]

hello there,


First of all I have a fairly basic question. When I create multiple vlans, each w/ their own DHCP-server and different nets, how are they separated from each other? Is there some sort of NAT going on between them? Or just routing?


I have a Buffalo WHR-HP-54 router with dd-wrt v24sp1 on it. My goal is this:
I want my LAN-Ports to be in one vlan, a WPA2-encrypted WLAN in another one and a WPA-encrypted in a third. Each of them should have its own DHCP-server. They should be separated from each other and from the WAN by NAT.

I already had a working WPA2-WLAN running. Here is what I did after reading the tutorials on creating separate wlans / wlan/lan (also see the pics in the attachment):

In Setup/VLANs I assigned ports 1 to 4 to vlan2. The WAN-port is still assigned to vlan1 and vlan0 contains no ports, but is assigned to bridge "LAN", as is "Wireless" at the bottom of the page.

In Wireless/Basic Settings I created a virtual interface, unbridged, and entered the desired ip/snm.

In Setup/Networking I changed vlan2 to unbridged (wl0.1 already was) and gave it an ip.
then I added 2 DHCPs, 1 for each of them.


This is what i got:
The existing WPA2-WLAN still works fine. So do the LAN-ports. But when I try to connect to the WPA-WLAN none of my PCs can obtain an ip from the DHCP. If I give them an ip manually they successfully connect but loose the connection after about 5 seconds.


As I only know very little about linux (I can use mount, useradd, chown and so on, but thats it) I have no idea what I did wrong. I am really grateful for any help you can give!

thx,
Alex


PS: I really appreciate the work you do - I was able to replace the ugly, unstable and uncomfortable router from my isp with this Buffalo and haven't had a disconnect ever since, plus better ping and quicker lan transfers!

PPS: I'm not If you find any spelling errors you may keep them

[anonymous123]

I just connected to my router via telnet to look at the dnsmasq.conf and this is what I got:

root@dd-wrt:/tmp# cat dnsmasq.conf
interface=br0,wl0.1,vlan2
resolv-file=/tmp/resolv.dnsmasq
domain=lan
dhcp-leasefile=/tmp/dnsmasq.leases
dhcp-lease-max=176
dhcp-option=lan,3,10.123.46.1
dhcp-option=wl0.1,3,192.168.0.1
dhcp-option=vlan2,3,192.168.1.1
dhcp-authoritative
dhcp-range=lan,10.123.46.2,10.123.46.9,255.255.255.0,1440m
dhcp-range=wl0.1,192.168.0.2,192.168.0.162,255.255.255.0,3600m
dhcp-range=vlan2,192.168.1.2,192.168.1.10,255.255.255.0,3600m
root@dd-wrt:/tmp#

what am I missing?

thx4help,
Alex