Anyone Know How to Make a Moto VT2542 Work BEHIND my WRT54GL

Posts: 16 · Vonage Forum Associate Joined: Jun 28, 2007 Posts: 16

I bought a WRT54GL so that I could load Tomato and get some decent QoS working...

I got the router working great - but not sure how to configure the Moto VT2542 behind it so that all it does is just pass the phone traffic through?

Would I plug the ethernet connection between the devices into the "internet" port or just an ethernet port on the 2542??

If I'm just using an ethernet port, I'm assuming that I need to hard code "LAN" IP address to match the same range/subnet as I'm using on the Linksys that it will be plugging in to, which I'm doing...but not getting any connectivty.

I know I've read of folks doing this - but not sure what I need to do to get this working properly.

Thanks in advance!

Posts: 4777 · Vonage Forum **MVM** Joined: Aug 30, 2005 Posts: 4777

You can do it either way. Assuming that you're using DHCP, if you plug the WAN port on the VT into a LAN port on the WRT, then leave the VT enabled as a DHCP server and make sure that the subnet addressing for the VT is different from the subnet addressing for the WRT. For example, if the WRT is handing out addresses in the range 192.168.15.xxx, then set the VT to use the range 192.168.16.xxx . In this configuration, computers plugged into the LAN side of the VT (if any) will have problems communicating with computers plugged into the WRT (unless you're skilled at setting things up, which I'm not).

Alternately, you can plug a LAN port on the VT into a LAN port on the WRT, effectively using the VT as a switch. In this configuration, you'll also need to disable the DHCP server function in the VT, and you'll need to plug a cable from one of the LAN ports on the VT into the WAN port on the VT to get phone service (!). Computers plugged into either router will be on the same subnet and will be able to communicate. You do not need to use static addressing.

Posts: 16 · Vonage Forum Associate Joined: Jun 28, 2007 Posts: 16

interesting...ive tried all of these things and haven't been able to get this to work.

I have my WRT set for no DHCP (i have a windows domain on my home network + DHCP server that handles addressing and DNS). It's standard 192.168.1.1.

I gave the LAN on the VT 192.168.1.2 and can 'see' it fine. When I set the WAN interface to DHCP, it never gets an IP address. Not sure if that's because the WRT won't pass the DHCP ack packets to the VT to give it one or what. I've tried setting it static and then I get nothing. I can't 'see' that IP anymore.

So, I'm confused. Not sure why this won't work but it's fairly temporary anyway because I just got a RMA from Vonage to return this POS and am replacing it with a DLINK VTA.

Would appreciate any ideas though - going to probably be another week and I'd really like to be able to use my phone. Smile

Posts: 9 · New Forum Member Joined: Aug 18, 2007 Posts: 9

Did you try disabling the firewall on the WRT?

Posts: 16 · Vonage Forum Associate Joined: Jun 28, 2007 Posts: 16

why would i disable the firewall on the WRT??? It's plugged into my cable modem is handling firewall/NAT duties.

Assuming you mean the VT. Yes, I've tried with NAT on and off and the firewall turned off as well when plugged into the WAN interface on the VT.

Posts: 9 · New Forum Member Joined: Aug 18, 2007 Posts: 9

Turn off the firewall on the WRT to if it is blocking anything downstream to the VT.

Posts: 9 · New Forum Member Joined: Aug 18, 2007 Posts: 9

choinga,

check out this thread. It might give you some ideas.

www.dslreports.com/forum/remark,16480054

Posts: 16 · Vonage Forum Associate Joined: Jun 28, 2007 Posts: 16

Thanks for the responses...actually, this is a pretty simple question but can't seem to get a solid answer (and that link doesn't tell me much other than it 'should' work).

FWIW, I'm sending the 2542 back because it's a piece of ****. The simple fact that it won't retain settings after cycling the device is a dealbreaker for me.

I asked for a DLINK VTA but they didn't have any so they are sending me the 2142 instead.

I have a WRT54G with Tomato sitting in front of this device. Neither device will handle DHCP. I have a windows domain on my home network and have a server that provides DHCP/DNS services.

I simply want to plug the 2142 into a LAN port on the 54G.

1) Should the corresponding port on the 2142 be the WAN or LAN port?
2) If WAN how do you configure the firewall on the 2142? Do you use static addressing or DHCP?
3) If DHCP, how is that affected since I don't use DHCP on the 54G which would give that WAN interface an IP address (not sure if the windows DHCP server would do this if no relay is in place...but haven't tested).
4) What about IP addressing? I'm assuming that both devices need to be on the same subnet but read conflicting information if using the WAN port on the device behind the firewall.

From there it seems pretty simple. I just need to figure out what settings to use to get the 2142 to work behind the 54G. I've tried every permutation with the 2542 but have not been able to get anything to work. Hopefully with the 2142 it's more straightforward, but any help is appreciated.

Posts: 46 · Full Forum Member Joined: Aug 07, 2007 Posts: 46

Saying that both devices should be on the same subnet is a tricky thing to say, because a router's WAN IP differs from its LAN IP, so while the WAN would be on the same subnet as your WRT54GL, the LAN IP of your VT2142 won't, unless you run it in switch mode. Basically, if you're not using DHCP assign a WAN IP to the Moto in the subnet of your WRT, and plug in the WAN port to a LAN on the wireless. Power cycle the whole network and that's it.

Posts: 8 · New Forum Member Joined: Jun 30, 2007 Posts: 8

Hi.

I think that the solution to your issue is here (With original firmware):

http://www.portforward.com/english/routers/port_forwarding/Linksys/WRT54GL/Vonage.htm

Cheers,

Joel.