I use tftp through a masquerading firewall. To set it up I edited (on the CentOS-4 firewall) /etc/sysconfig/iptables-config and set
IPTABLES_MODULES="ip_nat_tftp ip_conntrack_tftp"

I think ip_conntrack_tftp is what you need.

John.

lingu wrote:
Hi,

I have a setup where the tftp server is inside the firewall.

Now the issue is tftp client send request on dynamic udp port. Can anyone give some idea, how i can bind the fixed port for client udp requests ? Otherwise i hope, it is not a solution that i will open all port related to UDP in the firewall.

Regards,
lingu


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--
John Newbigin
ITS Senior Analyst / Programmer
Faculty of Information and Communication Technologies
Swinburne University of Technology
Melbourne, Australia
http://www.ict.swin.edu.au/staff/jnewbigin
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