WRT54GS and RT31P2

Posts: 4 · New Forum Member Joined: Oct 22, 2004 Posts: 4

Hi, i am new, so please bear with me. I currently have a Linksys WRT54GS router, and everything works fine. I just got my RT31P2 in the mail, and i cannot get it connected correctly. I pluged it in behind my existing firewall. I don't know a lot about configuring routers, so please be as clear as possible. I know it is just not connecting, because i can't even connect to it (192.168.15.1). I just don't know how to fix it.

Any help is appreciated.

Thank You!

Posts: 54 · Posted: Sat Oct 23, 2004 1:05 am Post subject:

Bioinicman,

I just got my RT31P2 today as well, and I am faced with the same question. I'm a network junkie, and it still puzzles me somewhat, but I can tell you what I learned:

Basically, the best thing I was able to achieve tonight was this - the RT31P2 is now my main router, and my other router is basically just a hub, or a switch, off of the new Vonage adapter.

From what I can tell, the RT31P2 has to be in front of everything else in order for it to get a dialtone. I was unable to get any other configuration to work. So the configuration looks like this:

Cable Modem -> Linksys RT31P2. Then my other router plugs into the RT31P2's Ethernet port (doesn't matter which one). I changed the LAN IP on my Vonage Linksys to 192.168.0.1, and enabled it's DHCP server. I changed the IP of my other router to 192.168.0.2, and disabled it's DHCP server. Everything is working fine, with the Vonage Linksys as the actual routing device, and the other router just acting as a hub.

Hope that helps, at least somewhat... It's a pretty confusing problem to solve.

Posts: 20 · Posted: Sun Oct 24, 2004 10:17 pm Post subject:

Have you called to see if your isp requires you to register a device ? I know mine wouldn't work til I registered my internet service with the New Router.

Posts: 54 · Posted: Tue Oct 26, 2004 2:54 pm Post subject:

Quote:

Have you called to see if your isp requires you to register a device ? I know mine wouldn't work til I registered my internet service with the New Router.

That is an excellent question. Comcast does look at the connected device's MAC address, which in my case, was the MAC of the original router. I 'spoofed' that MAC address on the RT (Linksys), and it authenticated onto the internet just fine after that.

Good point. Most ISPs do authenticate you by the MAC address of whatever plugs directly into the cable modem, which will either be the MAC of the net card of your computer (if you only have one computer), the MAC of your router's WAN port, or the MAC of whatever is plugged into the cable modem.

I got stuck with the Linksys RT from Vonage, and I must say I'm most frustrated. I have a Netgear router, which I love. Is is POSSIBLE to use the RT as just a hub/switch, and for it to still get a dialtone?? It appears to me that it has to be in front of everything else in order to get a dialtone.

Thanks!

Posts: 2 · Posted: Tue Nov 02, 2004 4:27 am Post subject:

Glad to see that I'm not alone in this challange. So here are the specs on my situation in the order I have them connected:

ISP - Comcast HSI
Motorola SurBoard

Linksys WRT54GS / Satori-4.0 v2.07 (firmware)
This is configured as a gateway (vs router), DHCP enabled, no cloned MACs, and no static routes.

CAT5e straight-through patch cable connected from a LAN port on the WRT to the Uplink port on the RT3.

Linksys RT31P2 (router from Vonage)
I have this configured to obtain its' IP from the WRT54GS's DHCP. I assigned the local IP in the same subnet as the DHCP addy received from the WRT. NAT disabled, Dynamic Routing is disabled, DHCP is disabled, no cloned MACs, and no static routes.

At this point I am able to make/receive calls with my Vonage number. If I connect my PC to the RT3 (with either DHCP or static IP) I am not able to communicate with the internet. Also am not able to ping the IPs of my modem or WRT; can not access the HTML admin pages. If I connect my PC to the WRT I can communicate with the internet. I can ping my WRT and access the HTML admin page. I can not ping the RT3 or access it's HTML set up page.

I tried clonning MACs, and that actually caused me to loss the ability to make/receive calls. I would rather not move the RT3 in front of the WRT...

To make this work, is it possible that static routes need to be written to both the WRT and the RT3?? Are there any details available on the internal port configuration of the RT3 that anyone has found? Has anyone connected the WRT to one of the LAN ports on the RT3 vs the Uplink?

Posts: 4 · New Forum Member Joined: Oct 22, 2004 Posts: 4

I ended up using the instructions on this page to get mine connected. I actually put my WRT54GS on the inside and am using it like a switch. it works great, i can ping both and access the html setup pages of both also.

Posts: 9 · New Forum Member Joined: Oct 25, 2004 Posts: 9

I got my RT31P2 yesterday.

I hooked it up behind my Linksys BEFW11S4 without any problems. I didn't change any configurations on either router. Should I have?

Instead of plugging the RT31P2 into the uplink port, I plugged it into one of the ethernet ports as if it were another device. One of my computers is plugged into the RT31P2.

Eventually, I may plug the RT31P2 ahead of the BEFW11S4 after my existing Verizon number is transferred. For now, this configuration allows me to have a Vonage phone handy until the transfer takes place.

Not sure how or if gaming still works between the computer plugged itno the RT31P2 and others plugged into the BEFW11S4.

Posts: 71 · Full Forum Member Joined: Mar 09, 2004 Posts: 71

hook up your RT31P2 to your Computer (without the router)

trying going to RT31P2's gateway address at 192.168.15.1 to (The default password is admin) On the Setup tab, enter the following...

Under internet connection type, select STATIC IP
Ip Address type in, 192.168.1.110
Subnet Mask type, 255.255.255.0
Default Gateway, 192.168.1.1
DNS 1: you can find your dns under your routers "status Page" bottom.
DNS 2: you can find your dns under your routers "status Page" bottom.
DNS 3: you can find your dns under your routers "status Page" bottom.
Click Save, and exit this page.

Now disconnect the RT31P2 from your Computer, and hook up your router, then hook up your RT31P2 to your Router.

now see if you can connect to the internet and make calls.

bionicman wrote:

Hi, i am new, so please bear with me. I currently have a Linksys WRT54GS router, and everything works fine. I just got my RT31P2 in the mail, and i cannot get it connected correctly. I pluged it in behind my existing firewall. I don't know a lot about configuring routers, so please be as clear as possible. I know it is just not connecting, because i can't even connect to it (192.168.15.1). I just don't know how to fix it.

Any help is appreciated.

Thank You!

Posts: 1 · New Forum Member Joined: Nov 22, 2004 Posts: 1

Here is what you are going to need to do to get things working (as a phone adapter only) with the RT31P2 behind a router/firewall of some kind:

1) Establish a static IP address for the adapter so we can set it in the router/firewall's DMZ. You will need to login into the RT31P2 to set this up. Grab a cross over cable and connect it to the NIC in your desktop/laptop and then to one of the 3 LAN ports on the RT31P2. If you connect the cable to the WAN port you will not be able to communicate with the RT31P2. (I would suggest that you reset the RT31P2 and start clean if you have had trouble setting it up in the past. See owner's manual for instructions on how to do this.)

2) Assign the static IP address of the RT31P2 in the DMZ setup of your firewall/router so that all traffic (on that IP address) points to the phone adapter.

3) Reboot the router/firewall so that any setting changes that have been will take effect and you should be good to go.

I have successfully used this setup at home where I have two adapters sitting behind my router.

***Please Note***

DO NOT USE the phone adapter as a hub/switch in this configuration. Any computer connected to it will not be secure (it is sitting in a DMZ) and will be open to an attack. I suggest using a hub/switch between your router and phone adapter so that you can distribute your network behind the router/firewall without fear. The RT31P2 should be last in the list of connected devices thus preventing any insecurities.

I welcome comments and suggestions.....

Very Happy

Bumble

Posts: 1 · New Forum Member Joined: Nov 26, 2004 Posts: 1

Just wanted to say thanks to MikesF271974. After about 1.5 hours on the phone with Linksys, they eventually decided that this was not a supported configuration (modem --> WRT54GSB --> RT31P2). The instructions on this thread worked great for me. I should have known to search the forum better before trying to talk to official support...

MikesF271974 wrote:

hook up your RT31P2 to your Computer (without the router)

trying going to RT31P2's gateway address at 192.168.15.1 to (The default password is admin) On the Setup tab, enter the following...

Under internet connection type, select STATIC IP
Ip Address type in, 192.168.1.110
Subnet Mask type, 255.255.255.0
Default Gateway, 192.168.1.1
DNS 1: you can find your dns under your routers "status Page" bottom.
DNS 2: you can find your dns under your routers "status Page" bottom.
DNS 3: you can find your dns under your routers "status Page" bottom.
Click Save, and exit this page.

Now disconnect the RT31P2 from your Computer, and hook up your router, then hook up your RT31P2 to your Router.

now see if you can connect to the internet and make calls.

bionicman wrote:

Hi, i am new, so please bear with me. I currently have a Linksys WRT54GS router, and everything works fine. I just got my RT31P2 in the mail, and i cannot get it connected correctly. I pluged it in behind my existing firewall. I don't know a lot about configuring routers, so please be as clear as possible. I know it is just not connecting, because i can't even connect to it (192.168.15.1). I just don't know how to fix it.

Any help is appreciated.

Thank You!