VT2442 and FTP server access

Posts: 7 · New Forum Member Joined: Nov 12, 2006 Posts: 7

Hey everyone,

I'm trying to set up an FTP server using Filezilla server. It used to work fine before, but now that i have the VT2442 Vonage router in front of my Linksys it doesn't!

Now my set up is as follow:

Cable Modem >> VT2442 >>> Linksys>>> computer

I've configured port-forwarding on the Linksys device from before, and i also just configured it on the VT2442.

is there something i'm missing?

I guess the question I'd really like answered is:

Is there a way to configure the VT2442 in such a way that it does not 'filter' the internet connection going to the Linksys router? I've tried disabling both 'NAT' and 'Firewall' from the WAN setup menu, but that seems to kill my internet connection on anything connected to the Linksys router.

any help on this would be much appreciated!

Posts: 23 · Vonage Forum Associate Joined: Nov 11, 2006 Posts: 23

1) Get rid of the linksys router.
2) If you disable nat/dhcp on the linksys, make SURE that all your clients point to your motorola as the gateway and as the dhcp server
3) IF you configured port forwarding on the motorola as most Voip instructions tell you, you've probably bound port 21 to your Voip box. Make SURE that you bound it as UDP, NOT TCP.
Port 21/TCP should be bound to your FTP server, not your Voip box.

Not to hijack your link, but this may help me answer questions better. Why are people using the router/voip combos when they already have a router? If its a space issue (i.e., your old router is in the basement and your new Voip router is upstairs, or not enough ports in your new router) why not just use a $40 switch? Just curious... Maybe I'm missing something, but two routers on a home network seems unnecessary and just asking for trouble.

Posts: 7 · New Forum Member Joined: Nov 12, 2006 Posts: 7

thanks for the reply-

I know 2 routers is a pain! but the whole point of the Linksys is that it is wireless... something I can't live without!

and the reason why I ask if "Is there a way to configure the VT2442 in such a way that it does not 'filter' the internet connection going to the Linksys router?" is I find it much easier to configure Linksys- I find the VT2442 interface to be very user-unfriendly. Can that ever work though? disabling firewall/NAT on VT2442?

Oh and by the way, I also tried running my FTP server directly connected to the VT2442- but that still didn't work. So to me it seems (of course i could be completely wrong here!) that some kind of setting on VT2442 is preventing FTP access anywhere behind it.

Posts: 23 · Vonage Forum Associate Joined: Nov 11, 2006 Posts: 23

Does the linksys have ethernet ports? If so, why not just use the linksys as your router? You don't need routing functions on the Voip box (the PAP 2, for example, has no routing functions).

I would suggest completly turning NAT and DHCP off on the VT2442. Turn DHCP and NAT ON on the linksys. The VT2442 now esentially turns into an access point (i.e., a switch).

Also, in the port-forwarding table in the linksys, make sure that port 21 (FTP) is forwarded to whatever IP address your FTP server is running. Odds are, it acquired a different IP address when you connected your VT2442. go to your ftp server, go to a command prompt, and type "ipconfig". In the dhcp lease table on the linksys, make sure that port 21 is forwarded to the ip address for the ftp server (assuming your FTP server is running through port 21, which is the default).

Let me know if this helps.

Posts: 7 · New Forum Member Joined: Nov 12, 2006 Posts: 7

jmg wrote:

Does the linksys have ethernet ports? If so, why not just use the linksys as your router? You don't need routing functions on the Voip box (the PAP 2, for example, has no routing functions).

I would suggest completly turning NAT and DHCP off on the VT2442. Turn DHCP and NAT ON on the linksys. The VT2442 now esentially turns into an access point (i.e., a switch).

that's exactly what i wanted to do. But as soon as i turned NAT off on the VT2442, it completely killed my internet connection. I was still able to access the VT2442 interface by typing in my IP address into the browser, but absolutely no connection to the outside world.

jmg wrote:

Also, in the port-forwarding table in the linksys, make sure that port 21 (FTP) is forwarded to whatever IP address your FTP server is running. Odds are, it acquired a different IP address when you connected your VT2442. go to your ftp server, go to a command prompt, and type "ipconfig". In the dhcp lease table on the linksys, make sure that port 21 is forwarded to the ip address for the ftp server (assuming your FTP server is running through port 21, which is the default).

My FTP was working fine behind the Linksys before the VT2442 was put in the mixer. I used to connect the VT2442 behind the Linksys, but as you probably already know that really affects sound quality- so I know that my Linksys is configured properly to work with my FTP server

jmg wrote:

Let me know if this helps.

I'll try doing all this again, and will let you know if gets sorted.

Posts: 23 · Vonage Forum Associate Joined: Nov 11, 2006 Posts: 23

khello wrote:

JMG wrote:

I would suggest completly turning NAT and DHCP off on the VT2442. Turn DHCP and NAT ON on the linksys. The VT2442 now esentially turns into an access point (i.e., a switch).

that's exactly what i wanted to do. But as soon as i turned NAT off on the VT2442, it completely killed my internet connection. I was still able to access the VT2442 interface by typing in my IP address into the browser, but absolutely no connection to the outside world.

Is NAT turned on the Linksys? Also, there should be an option on the VT2442 to "use as access point". Try that
.

khello wrote:

My FTP was working fine behind the Linksys before the VT2442 was put in the mixer. I used to connect the VT2442 behind the Linksys, but as you probably already know that really affects sound quality- so I know that my Linksys is configured properly to work with my FTP server

Not entirely true. The FTP server may have acquired a differnet ip address from the DHCP server. If it has, then the ip address in your port-forwarding table in your linksys will be out of date. Try (temporarily) putting the FTP server in the DMZ; if it works, you need to update your port forwarding table (alternatively, just check the DHCP table, and see what ip address the FTP server is assigned)
You can prevent this from happening in the future by assigning the ftp server a specific ip address (there is a table to do this in your router; you base it off the MAC address of the ftp server's network card).

Posts: 7 · New Forum Member Joined: Nov 12, 2006 Posts: 7

jmg wrote:

khello wrote:

JMG wrote:

I would suggest completly turning NAT and DHCP off on the VT2442. Turn DHCP and NAT ON on the linksys. The VT2442 now esentially turns into an access point (i.e., a switch).

that's exactly what i wanted to do. But as soon as i turned NAT off on the VT2442, it completely killed my internet connection. I was still able to access the VT2442 interface by typing in my IP address into the browser, but absolutely no connection to the outside world.

Is NAT turned on the Linksys? Also, there should be an option on the VT2442 to "use as access point". Try that

Yes- NAT is turned on Linksys. I've looked for an option on the VT24442 to use as an access point, but can't seem to find it. i'd love it if if there, because I have a feeling it'll solve everything!

btw, like i said turning off NAT from the VT2442 kills my internet connection. the weird thing is, though, when i ping say google.com, command prompt acknowledges the IP address of the host, but all ping attempt time out:

Quote:

Pinging www.google.com [216.239.37.104] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 216.239.37.104:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

So am I right in saying there is some access to the outside world? Why does turning off NAT on the VT2442 kill my internet connection?
.

jmg wrote:

khello wrote:

My FTP was working fine behind the Linksys before the VT2442 was put in the mixer. I used to connect the VT2442 behind the Linksys, but as you probably already know that really affects sound quality- so I know that my Linksys is configured properly to work with my FTP server

Not entirely true. The FTP server may have acquired a differnet ip address from the DHCP server. If it has, then the ip address in your port-forwarding table in your linksys will be out of date. Try (temporarily) putting the FTP server in the DMZ; if it works, you need to update your port forwarding table (alternatively, just check the DHCP table, and see what ip address the FTP server is assigned)
You can prevent this from happening in the future by assigning the ftp server a specific ip address (there is a table to do this in your router; you base it off the MAC address of the ftp server's network card).

I see. This is the way I had it when it worked (and sorry for being so elaborate, I actually think i need to have it broken down for my humble mind to understand!)

Cable Modem >> Linksys >>> laptop (connected wirelessly) where the FTP server was run (using Filezilla server) from.

I configured port forwarding on Linksys so that any when someone types in ftp://x.x.x.x (x.x.x.x being my ip address) that query will be forwarded to port 21 on my laptop. That worked without any problems.

See I didn't know that my FTP server gets assigned an IP address. I guess I'm just not completely informed about what and FTP server is! Embarassed

So in my mind, the internal IP address of the FTP server is infact my laptop's server (please correct me if I'm wrong!).

Posts: 208 · Posted: Mon Nov 13, 2006 2:32 pm Post subject:

dont forget though, ftp is actually ports 20 and 21. it's a control via TCP/UDP. I would go with DMZ and forward all ports and all protocols to be safe.

Posts: 23 · Vonage Forum Associate Joined: Nov 11, 2006 Posts: 23

khello wrote:

See I didn't know that my FTP server gets assigned an IP address. I guess I'm just not completely informed about what and FTP server is! Embarassed

So in my mind, the internal IP address of the FTP server is infact my laptop's server (please correct me if I'm wrong!).

The FTP server is a program running on your laptop.
It will have the same ip address as your laptop.
It will also listen to a certain port number (by defauly port 21) on that ip address for ftp requests.

It's a minor point--- the ip address of your LAPTOP may very well change each time you connect to the router... IP address assignment is dynamic (hence, the "d" in HDCP), and the same device will not always necessarily get the same IP addres.

A few other things to try:
1) Make sure firewall on motorola is turned of
2) disable DMZ on motorola
3) turn on UPnP on the motorola (this may work, if linksys router supports).
4) go onto your Voip box; go into the voice menu. What is the gateway? It should be linksys.
5) Go to network setup on your laptop; go to tcpip, then setup. Go to advanced. Is the gateway pointing to your router?
6) are both routers using the same ip address? Most routers use "192.168.X.1" as their ip address. MAKE SURE that the motorola is not on the same default ip address (now that I think about it, they probably are).
7) Linksys and motorola have same subnet mask? (probably 255.255.255.0).
Cool

ANY of this help?

Posts: 7 · New Forum Member Joined: Nov 12, 2006 Posts: 7

jmg wrote:

A few other things to try:
1) Make sure firewall on motorola is turned of
2) disable DMZ on motorola
3) turn on UPnP on the motorola (this may work, if linksys router supports).
4) go onto your Voip box; go into the voice menu. What is the gateway? It should be linksys.
5) Go to network setup on your laptop; go to tcpip, then setup. Go to advanced. Is the gateway pointing to your router?
6) are both routers using the same ip address? Most routers use "192.168.X.1" as their ip address. MAKE SURE that the motorola is not on the same default ip address (now that I think about it, they probably are).
7) Linksys and motorola have same subnet mask? (probably 255.255.255.0).
Cool

ANY of this help?

I've done all of that but still no luck. I guess the main issue here is trying to figure out a way to setup the VT2442 so that it acts as an access point without filtering traffic at all. Like i said before, disabling NAT kills the connection coming through.

Oh and FYI, IP's of VT2442 and Linksys are different by default.

thanks for the speedy replies by the way Wink