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How to Setup a DD-WRT Router with AT&T U-verse

5,158 bytes added, 19:51, 10 March 2013
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UNDER CONSTRUCTION=Motivation & Background=When I moved into my new home [https://en.wikipedia.org/wiki/AT%26T_U-verse AT&T UVerse] was my only real option for internet access. I called them up & had the service installed & activated. The installation consists of a special, proprietary, AT&T [https://en.wikipedia.org/wiki/Very-high-bit-rate_digital_subscriber_line VDSL] a DC Power Supply, & a special, AT&T 2Wire Router model i38HG.
Check PDFs To my initial dismay, I found that the VDSL modem could not function without the AT&T 2Wire Router. This was a problem for notesme as the 2Wire Router is limited in functionality and I was used to administering my home network using a [https://en.wikipedia.org/wiki/Linksys_WRT54G_series#WRT54G Linksys WRT54G] with [http://www.dd-wrt.com DD-WRT] firmware installed. I used this firmware load to allow me to assign [https://en.wikipedia.org/wiki/IP_address#Uses_of_static_addressing static IPs], [https://en.wikipedia.org/wiki/MAC_filtering MAC Address Filtering], and reasonably complex [https://en.wikipedia.org/wiki/Port_forwarding Port Forwarding].
U-verse setup*Settings-LAN-DHCP = Configure Manually*Settings-LAN-IP Address Allocation for router = DisableI did a little bit of Googling & some experimenting and ended up with a solution I was happy with. Essentially I disabled the wireless radio on the 2Wire i38HG, Public, Router WAN*Settings-Firewall-Applications, Pinholes plugged my Linksys WRT54G into the i38HG and had the i38HG pass all traffic through to the WRT54G. I have the local address of the i38HG as 192.168.0.1 and it can assign 192.168.0.2 through 192.168.0.5 on its wired ports. The WRT54G has a local address of 192.168.1.1 and DMZ = DMZplus mode for Router*Settings-LAN-Wireless = Disable Wireless Access Pointassigns all wired & wireless ip from the 192.168.1.XXX block.
The trick to getting all to work is to ensure the settings are correct on both the i38HG & WRT54G. Below is a explanation of the steps to go through to set your network up like mine. I'm assuming you've already got DD-WRT installed and working on your Router . If not, visit the [http://www.dd-wrt.com DD-WRT website] for help. The IP address of your AT&T 2Wire i38HG Router is printed on the side of the Router. The default password is a long string of numbers printed on the side of the DC Power Supply / Battery Backup. I recommend you change the password.<br /><br />=Linksys WRT54G Setup=#Using a wired connection, log into your Linksys WRT54G*#Navigate to Setup-> Basic Setup**-> WAN Setup -> WAN Connection Type -> Connection Type = & select "Automatic Configuration - DHCP"#Navigate to Setup -> Basic Setup -> Router IP and enter in the values below##Local IP Address: "192.168.1.1"##Subnet Mask: "255.255.255.0"##Gateway: "0.0.0.0"**##Local DNS: "0.0.0.0"#Navigate to Setup -> Basic Setup -> Network Address Server Settings (DHCP) and enter in the values below##DHCP Type: "DHCP Server"##DHCP Server: "Enable"##Start IP Address 192.168.1.: "100"#Hit Apply Settings#Hit Save<br />[[File:DDWRT-Setup-Basic_Setup.png]]<br /><br />=AT&T 2Wire i38HG Setup=#Using a wired connection, log into your AT&T Router (the IP address is printed on the side of the Router. The password is printed on the side of the DC Power Supply / Battery Backup)#Navigate to Settings -> LAN -> Wireless -> Wireless Access Point & select "Disabled". Then hit "Save"<br />[[File:Settings-LAN-Wireless.png]]#Navigate to Settings -> LAN -> DHCP & select the "Configure manually" radio button and enter the values below. Then hit "Save"##Router Address: "192.168.0.1" (this is the address of your AT&T 2Wire i38HG)##Subnet Mask: "255.255.255.0"##First DHCP Address etc: "192.168.0.2" (this and the settings below select the range of assignable IP address. You only need 4 since the box only has 4 wired ports)**##Last DHCP Address: "192.168.0.5"<br />[[File:Settings-LAN-DHCP .png]]#Navigate to Settings -> LAN -> IP Address Allocation, find your router (identified by its MAC Address) and enter in the values below. Then his "Save"##Firewall: "Disabled"##Address Assignment: "Public (select WAN IP Mapping)"##WAN IP Mapping: "Router WAN IP address (default)"<br />[[File:Settings-LAN-IP.png]]#Navigate to Settings -> Firewall -> Applications, Pinholes and DMZ, select your Router (identified by its MAC Address) and select the "Allow all applications (DMZplus mode)... radio button. Then hit "Save"[[File:Settings-Firewall-Apps.png]]#Navigate to Settings -> Firewall -> Advanced Configuration and enter the values below. Then hit "Save"##Enhanced Security###Stealth Mode: unchecked###Block Ping: unchecked###Strict UDP Session Control: unchecked##Outbound Protocol Control###HTTP: CHECKED###HTTPS: CHECKED###FTP: CHECKED###Telnet: CHECKED###SMTP: CHECKED###DNS: CHECKED###NetBIOS: unchecked###POP3: CHECKED###IMAP: CHECKED###NNTP: CHECKED###IRC: CHECKED###H323: CHECKED###All Other Protocols: CHECKED##Inbound Protocol Control###NetBIOS: unchecked##Attack Detection (disabling these passes everything to your WRT54G which should be configured to deal with these types of problems)###Excessive Session Detection: unchecked###TCP/UDP Port Scan: unchecked###Invalid Source/Destination IP address: unchecked###Packet Flodd (SYN/UDP/ICMP/Other): unchecked###Invalid TCP Flag Attacks (NULL/XMAS/Other): unchecked###Invalid ICMP Detection: unchecked###Miscellaneous: unchecked<br />[[File:Settings-Firewall-Advanced.png]]#Navigate to Settings -> Firewall -> Status and you should have your Router listed (identified by its MAC Address) with the following information displayed##Allowed Applications: "All"##Application Type: "-"##Protocol: "(all)"##Port Number(s): "(all)"##Public IP: "[http://www.whatismyip.com/ <your IP address>]"<br />[[File:Settings-Firewall-Status.png]]
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