File send problem with iptables/nat

[417]

hello, I have a lan with an iptables/nat

users can download/upload/ftp/smtp/chat, ..
they can use yahoo messenger as well, they also can recieve files from other ymess users

but they can not send any files!

can u help me?

here is my script:


# Set default policies
$IPTABLES -P INPUT ACCEPT
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -P FORWARD ACCEPT

# Accept the packets we actually want to forward
$IPTABLES -A FORWARD -i $LAN_IFACE -j ACCEPT
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT

# Enable simple IP Forwarding and Network Address Translation
$IPTABLES -t nat -A POSTROUTING -o $INET_IFACE -j SNAT --to-source $INET_IP

tanx

[cyberinstru]

As far as your Iptables script is concerned, there is nothing tricky in it to block any traffic.
It by default, takes in and sends out any traffic.

but they can not send any files!

Do you mean to say that file-upload could not occur through yahoo messenger or thro' other file transfer applications?

Can you be some more clear?

[infoshirish]

Hey,
I guess its not a iptables problem. Can they send files from there mail accounts?. What is file size you are trying to send as there might be some limit set on yahoo servers for maximum file size limit.

[417]

Solved!

As you told there was no problem with iptables, this is a problem with GAIM, I can not send files from latest version of Ymessenger (windows) to Gaim.

I checked koppete, and it works fine.

thank you all.