Hi all,

First of all I'm from Bulgaria so excuse me for my english!!!

So, my case is a little bit complicated. What I mean is that I have a small LAN (4 PCs) behind a Repotec router which I use mainly for ICS. Recently I decided to run an anonymous FTP server on the Linux PC (OS - Redhat 8.0). I configured my /etc/vsftpd.conf, so every other PC on my LAN is capable of downloading (with a pretty good speed 10-12 MB/s). Then I decided to "broadcast" it over the internet. And then the problems appeared. Nobody is able to connect to my ftp server. I found it's something about PASV. So I "played" a little with the PASV options (in vsftpd.conf and in the router's menu). And finally I got it! My friends were able to connect. But here is the big problem. When somebody tries to download something big (like 600 MB) the router freezes (blocks out) and I must reset it. I have the latest firmware!!!! Between the LAN PCs there is no such thing. 10 days ago I transfered 30Gb with 10MB/s. I think that this is something related with my vsftpd.conf (I realy don't think that the router is causing the problem). Here I'll give you only the options that I've changed:
1. anonymous_enable=YES
2. local_enable=NO
3. all of the write/upload related stuff -> NO
4. connect_from_port_20=YES
5. pam_service_name=vsftpd
I've added
6. pasv_promiscuous=YES
7. anon_root=/mnt/seagate
8. pasv_min_port=65000
9. pasv_max_port=65534
10. pasv_address=xxx.xxx.xxx.xxx -> my WAN IP(it's static)

and in the router settings page

I forwarded port 21 to 192.168.1.10 on the "uPnP forwarding" page and from 65000~65534 to 192.168.1.10 on the "port range forwarding" page
So any help is highly appriciated! 10x a lot!

PS: I'm a

since FTP uses both port 20 and 21 try forwarding both. I assume 168.192.1.10 is the actual FTP server?? Does your router also lock up when your friends are downloading much smaller files?

No the server doesn't lock up for smaller files, and port 20 is forwarded too (I forgot to write that, srry)

im not sure if this will help you or not but this site has some documentation on many types of routers.

http://www.portforward.com/routers.htm

Typically the internal IP range of 192.168.x.x is used.

OK, 10x

I checked it. I couldn't found nothing different from what I did. Today I had an idea. Once I've tried to setup ftp server on windows XP machine and now I remember that only one user connected, initiated more than 10 connections to different ports (according to tcpview). So I'm thinking: is it possible that vsftpd acts the same way - allowing too much connections, that overloads the router and it freezes?