Configuration problems - ddwrt router beind Uverse modem

[slag]

I'm stumped why my configuration isn't working, but hope someone can assist me. It's probably something dumb that I'm just missing here.

I have an asus rt-N16 router flashed with dd-wrt firmware that is behind my Uverse modem. I'm attempting to use it only as a dhcp forwarder so I can see all shares on my internal network, and also have a separate WIFI connection for in house security cams, certain computers, etc.

I am following the guide here:
http://lab.stefanoperna.it/archives...ng-dd-wrt-routers-with-dhcp-forwarder-option/

My uverse modem/router ip is 192.168.1.254. My asus router is a static 192.168.1.1. I've not done anything special on my uverse modem except to assign the static ip to the asus router.

Dns doesn't work. Internal networking does between computers plugged into this asus router, but not those connected to the uverse modem upstairs.

Under the advanced routing tab on the ddwrt router, I have set it as "router".

What am I doing wrong? It has to be something simple, right?

 

[sdifox]

<p>Did you try just usimg the asus in ap mode? Cuz this sounds like double nat to me.

 

[Fardringle]

Change the Asus router's LAN IP address range to something different than what the Uverse modem is using. Right now the Uverse modem is using 192.168.1.x so you need to set the Asus to 192.168.2.x (or something else in the 2 spot) or 10.0.0.1, or some other private address range that won't conflict directly with the Uverse modem.

OR, to have all devices use the same IP address range, disable DHCP on the ASUS and connect one of its LAN ports to the Uverse router instead of the WAN port.

 

[slag]

<p>Did you try just usimg the asus in ap mode? Cuz this sounds like double nat to me.

I believe that AP mode will make it be its own dhcp server. I can't see my wife's laptop or any other machines not on the asus router and want it to be as transparent as it can.

How do I make it so that I can see all the devices on the network and just have this ASUS ddwrt router be a passthrough with its own wifi access point?

Disconnecting now so I can check the config on the asus router and try a few things.

 

[slag]

Change the Asus router's LAN IP address range to something different than what the Uverse modem is using. Right now the Uverse modem is using 192.168.1.x so you need to set the Asus to 192.168.2.x (or something else in the 2 spot) or 10.0.0.1, or some other private address range that won't conflict directly with the Uverse modem.

OR, to have all devices use the same IP address range, disable DHCP on the ASUS and connect one of its LAN ports to the Uverse router instead of the WAN port.

I'll try that first. Thanks.

 

[Fardringle]

edit: Never mind, you replied while I was typing.

 

[slag]

edit: Never mind, you replied while I was typing.

I don't know how to set the subnet mask correctly and everything to make the 192.168.1.x network see the 192.168.2.x network. I need to read up on that but not tonight. Thanks.

 

[sdifox]

I believe that AP mode will make it be its own dhcp server. I can't see my wife's laptop or any other machines not on the asus router and want it to be as transparent as it can.

How do I make it so that I can see all the devices on the network and just have this ASUS ddwrt router be a passthrough with its own wifi access point?

Disconnecting now so I can check the config on the asus router and try a few things.

You need one dhcp server, and from what you said, the uverse modem is acting as a router as well, so just use the dhcp on it and turn your asus to ap mode and turn off dhcp on it.

 

[sdifox]

i don't know how to set the subnet mask correctly and everything to make the 192.168.1.x network see the 192.168.2.x network. I need to read up on that but not tonight. Thanks.

255.255.0.0/32

 

[Fardringle]

Just use the second half of my instructions if you want to have everything on the same network to see and communicate wtih each other. Or if you want to change the IP address range on the Asus to isolate it from the Uverse router network, just change the Asus LAN IP and leave the subnet mask (255.255.255.0) alone. You don't need to change it unless you plan to use more than 254 IP addresses on your local network.

 

[slag]

OR, to have all devices use the same IP address range, disable DHCP on the ASUS and connect one of its LAN ports to the Uverse router instead of the WAN port.

Only problem I have with this is that I have 4 LAN ports to work with and I planned on using all 4. I could put another gigabit switch on one I guess, but I wanted to keep it simple. I'd like to be able to use the WAN port and still see everything on my network if possible.

Thanks for all your advice and everyone else as well.

 

[sdifox]

Wan port cannot be used as lan port.

 

[mxnerd]

DD-WRT does offer the option to turn WAN port to a LAN port.

http://www.dd-wrt.com/wiki/index.php/WAN_Port

 

[sdifox]

DD-WRT does offer the option to turn WAN port to a LAN port.

http://www.dd-wrt.com/wiki/index.php/WAN_Port

That's convenient.

 

[slag]

Follow up. Got it all working. Set the WAN port as a lan port, set the connection type as disabled, and turned on dhcp forwarding. Works like a champ. Now I need to figure out why I'm only getting 12 mbps between computers with my file transfer. Both computers are set to gigabit speeds in their NICS and I'm going through the asus/ddwrt router which is a gigabit router, so... yeah, i'll get working on that.

 

[sdifox]

Follow up. Got it all working. Set the WAN port as a lan port, set the connection type as disabled, and turned on dhcp forwarding. Works like a champ. Now I need to figure out why I'm only getting 12 mbps between computers with my file transfer. Both computers are set to gigabit speeds in their NICS and I'm going through the asus/ddwrt router which is a gigabit router, so... yeah, i'll get working on that.

Is one of them on the wan port? That one might not be gigabit.

 

[slag]

No. I was also having this problem prior to the other issue. Both nics are configured for gigabit full duplex. I'm going to substitute a laptop on each side to see where the problem lies. I have the pia client on one desktop. But even with it off, the speeds are slow. I wonder if the software adapter is interfering even when it's off?

 

[sdifox]

Well, verify link speed on each computer to see if they are indeed running in gigabit.

 

[slag]

I have and they are. They are not set to auto negotiation or 10 or 100, they are both set to gigabit speeds.

 

[sdifox]

I have and they are. They are not set to auto negotiation or 10 or 100, they are both set to gigabit speeds.

I don't mean the setting, rather the actual link speed.

 

[slag]

I don't mean the setting, rather the actual link speed.

uh, yeah, thats why im going to use another computer to do so. I don't know of another way to actually verify link speed between two computers other than to transfer a file.

 

[sdifox]

You can check the speed of the link in windows when you open the status window of the nic.

 

[slag]

You can check the speed of the link in windows when you open the status window of the nic.

I assume you are talking about this window.. they both show 1 GB

 

[sdifox]

Interesting, both show gigabit but transfer rate suck. Any home made cables involved?


Try a network throughput testing software amd see what happens.

 

[slag]

I misspoke. The htpc is only 100 mb. I have a 100 ft new cat 6 cable from amazon. I guess its too long. I'll get a 25 and a 50 and put a gigabit switch in between and see if that fixes the problem.