DD-WRT DHCP forwarding issues

nsafreak

Diamond Member
Oct 16, 2001
7,093
3
81
Well I'm stumped as I honestly don't know what I'm doing wrong. I'm trying to extend a friend's wireless network so that there is more coverage. So I'm setting up one router as an access point and another as a wireless repeater. For a reason that I haven't been able to determine I'm unable to get this unit to do DHCP forwarding. This is with DD-WRT build 21061. Here's how I have it setup:

WAN Setup

WAN IP: 192.168.1.190
Subnet: 255.255.255.0
Gateway: 192.168.1.1

Network setup

Local IP: 192.168.1.190
Subnet: 255.255.255.0
Gateway: 192.168.1.1
DHCP Type: DHCP Forwarder
DHCP Server: 192.168.1.1

I've also tried setting the WAN Connection to disabled with no change. What I'm seeing is that it looks like the clients authenticate with the wpa2 key but for some reason they fail to obtain DHCP info. Any ideas as to what I might be doing wrong?
 

nsafreak

Diamond Member
Oct 16, 2001
7,093
3
81
Because I would prefer not to have 2 DHCP servers on the network. There is already a wireless router on the network that's handling DHCP duties and having multiple DHCP servers is likely to cause issues.
 

imagoon

Diamond Member
Feb 19, 2003
5,199
0
0
Because I would prefer not to have 2 DHCP servers on the network. There is already a wireless router on the network that's handling DHCP duties and having multiple DHCP servers is likely to cause issues.

From your description, there is no reason to have 2 nor to use DHCP forwarding. This is why I am confused.

DHCP relay / forwarding is designed to take a dhcp request, reform it and send it to a remote network to get a response and then rebroadcast it. Since everything is the same network, (192.168.1.0/24) the forwarder is likely ignoring the request because it is being told to ship the message to a network local IP. Additionally most home network implementations don't even support this type DHCP request.
 
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