tftp port blocked?

abalmos · 06-08-2005, 06:53 PM

Hello,

I am trying to get a tftp-hpa running. Every thing seems to be running OK, and if I `tftp localhost` everything works OK. I can get and put files.

If i try to tftp into the box from a remote machine (but on the same network) I get a connection timeout error.

My guess is that UDP port 69 is blocked, but I do not know where to even being where to start looking to fix this.

What should I be looking for? Do you have/know of any reference documents to that, that I can use to solve this problem?

Thanks!

- Andrew

btmiller · 06-08-2005, 08:50 PM

Do you have any firewall rules defined? You can type "iptables -L" aqt a command prompt to list them. Also, be sure you set your tftp daemon to listen on all interfaces (not just the loopback).

abalmos · 06-08-2005, 08:57 PM

Hello,

iptables -L gives me:
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

As far as I can tell there are no firewall rules.
I used: in.tftpd -l -s /var/tftpboot
to start tftp, so I am assuming that it is binding to all interfaces...

Thanks!,
Andrew

btmiller · 06-08-2005, 09:12 PM

Doesn't look like the firewall. If you nmap the tftp server from the remote host, does it see the tftp port being open? (Run nmap <IP of tftp server> from the remote host).

abalmos · 06-09-2005, 10:35 AM

Hello,

I have found the problem, I though I had the router correctly configured but I looked over some problems...

Sorry about the mis-post.

Thanks for your time!,

- Andrew