I have a problem configuring gufw. I open ports on it, but when i test in deluge it shows as closed. Any help on setting up the firewall would be greatly appreciated. This is the output I get on the firewall in terminal:

    Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN      1346/dnsmasq    
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      970/cupsd       
tcp        0      0 0.0.0.0:55521           0.0.0.0:*               LISTEN      17362/python    
tcp6       0      0 ::1:631                 :::*                    LISTEN      970/cupsd       
tcp6       0      0 :::55521                :::*                    LISTEN      17362/python    
udp        0      0 10.0.0.125:1900         0.0.0.0:*                           17362/python    
udp        0      0 127.0.0.1:1900          0.0.0.0:*                           17362/python    
udp        0      0 0.0.0.0:1900            0.0.0.0:*                           17362/python    
udp        0      0 127.0.0.1:53162         0.0.0.0:*                           17362/python    
udp        0      0 127.0.0.1:53            0.0.0.0:*                           1346/dnsmasq    
udp        0      0 0.0.0.0:68              0.0.0.0:*                           1312/dhclient   
udp        0      0 10.0.0.125:36948        0.0.0.0:*                           17362/python    
udp        0      0 0.0.0.0:37240           0.0.0.0:*                           17362/python    
udp        0      0 10.0.0.125:6771         0.0.0.0:*                           17362/python    
udp        0      0 127.0.0.1:6771          0.0.0.0:*                           17362/python    
udp        0      0 0.0.0.0:6771            0.0.0.0:*                           17362/python    
udp        0      0 10.0.0.125:50034        0.0.0.0:*                           17362/python    
udp        0      0 0.0.0.0:58340           0.0.0.0:*                           982/avahi-daemon: r
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           982/avahi-daemon: r
udp        0      0 0.0.0.0:56947           0.0.0.0:*                           17362/python    
udp        0      0 127.0.0.1:57059         0.0.0.0:*                           17362/python    
udp6       0      0 :::49793                :::*                                982/avahi-daemon: r
udp6       0      0 :::5353                 :::*                                982/avahi-daemon: r
kenneth@kenneth-K53U:~$ sudo ufw status
Status: aktive

Til                        Handling    Fra
---                        --------    ---
6881:6891/tcp              ALLOW       Anywhere
6881:6891/udp              ALLOW       Anywhere
55521/tcp                  ALLOW       Anywhere
6881:6891/tcp              ALLOW       Anywhere (v6)
6881:6891/udp              ALLOW       Anywhere (v6)
55521/tcp                  ALLOW       Anywhere (v6)

I also want to be able to use the firewall with linuxdc, so I need other ports open as well.

This is connected to the firewall. Because when I turn off the firewall, the port is open. So this is not a problem with my modem.

Do I need the firewall? The broadband modem has a hardware firewall.

Update: Forgot to add. When my firewall is inactive, it closes ports after a time. So when I use linuxdc, I have to flush iptabels and activating it again. Is this supposed to do this when the firewall is deactivated?

Update again: All my ports are closed now, flushing the iptable does not work anymore. I have uninstalled gufw, but still all my ports are closed. And to say it again, this has nothing to do with my broadband modem since it worked when I used windows 7.

I need help to open the ports.