Luigi Auriemma

Hi,

I've changed hardcoded port number 3784 to 3783 in few locations :

- when server binds udp socket
- when server binds tcp socket
- when server is sending hash and few more info to centralized servers
- when server sends back an udp packet with hash to each client

All seems to work fine, users can login, change channel, enter chat but they can't speak. Clients instead of sending voice stream filled with their voice are sending an empty voice stream (we can see speakers highlight, but we can't hear someone at all).

I'm pretty sure that there is an switch in some packet that tells client if server is able to use other port that default one.

So there is my question, does someone did it?

probably depends by the things you modfied, compare the bytes you modified with the following (standard 3.0.3 server):

There's a app here I think it's called Ventrilo Proxy I remember trying to do this exact same thing I don't recall if I managed to get it to work.. but you can check it out, there's not a great documentation about the app but it might help.

You can find Ventrilo Proxy somewhere on this site :o

It is definitely a switch in some packet. I modyfied a 0x3C packet (with switches that turns on/off some part of client gui like codec per channel, voice/cmd targets, private chats) and replaced 3 at offset 6 to 1. Now I'm able to record my voice and play it later, but still can't hear people "on live".

I will work on it tomorrow, thanks for replys.

Ok, I've made it.

First, you have to modify the 0x3C packet as I posted above:


later, you have to put 0x01 instead of 0x00 in 0x3c at offset 4



It tells the client that server is Public, and if port is != 3784 then ventrilo client will mute us.

You're now probably able to talk, but server will stop answering (you can only recive some packets)after some seconds (60s~ of idle, or it is random I don't remember). You have to remove also "server-side" limit so:



Now you're able to change the port.

Thanks for the info, but if I want the port 1234 how would I change it?

Can someone help me understand how I can go about changing it from the default port 3784 to 5553? I think my isp blocks port 3784. If someone could help me change the port so I could at least get some use from their public version, that'd be great. Thanks.

above examples with b115 instead of D204