Following is the response for your suggestion while tftp server & client are running, it seems that port is fine.. [root@localhost tftpboot]# lsof -i | grep tftp xinetd 4094 root 5u IPv4 28956 0t0 UDP *:tftp xinetd 4094 root 8u IPv4 28958 0t0 UDP *:tftp tftp 7293 root 3u IPv4 41470 0t0 UDP *:38633 [root@localhost tftpboot]# netstat -an | grep udp udp 0 0 0.0.0.0:38633 0.0.0.0:* udp 0 0 0.0.0.0:5353 0.0.0.0:* udp 0 0 0.0.0.0:875 0.0.0.0:* udp 0 0 0.0.0.0:111 0.0.0.0:* udp 0 0 0.0.0.0:2049 0.0.0.0:* udp 0 0 155.101.91.255:137 0.0.0.0:* udp 0 0 155.101.90.30:137 0.0.0.0:* udp 0 0 0.0.0.0:137 0.0.0.0:* udp 0 0 155.101.91.255:138 0.0.0.0:* udp 0 0 155.101.90.30:138 0.0.0.0:* udp 0 0 0.0.0.0:138 0.0.0.0:* udp 0 0 0.0.0.0:44305 0.0.0.0:* udp 0 0 0.0.0.0:38172 0.0.0.0:* udp 0 0 0.0.0.0:800 0.0.0.0:* udp 0 0 0.0.0.0:676 0.0.0.0:* udp 0 0 0.0.0.0:48438 0.0.0.0:* udp 0 0 0.0.0.0:68 0.0.0.0:* udp 0 0 0.0.0.0:69 0.0.0.0:* udp 0 0 0.0.0.0:69 0.0.0.0:* udp 0 0 0.0.0.0:48483 0.0.0.0:* udp 0 0 :::111 :::* udp 0 0 :::676 :::* udp 0 0 :::54458 :::* udp 0 0 :::34505 :::* Best Regards, Jignesh Shah -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Georgios Magklaras Sent: Thursday, July 21, 2011 9:17 AM To: General Red Hat Linux discussion list Subject: Re: RHEL6 - TFTP Timeout On 07/21/2011 01:45 PM, Jignesh.Shah@xxxxxxxxxxx wrote: > Hi Amit, > > Thanks for the response. > > To verify the ports, I already performed TFTP data transfer between TFTP Server running on windows machine and TFTP client running on Linux machine successfully. > > So I believe port is not blocked. Still, I can verify... If IPTABLES (or other routing/firewall issue) is not blocking access to UDP port 69, when you start the TFTP server on Linux, does it really listen to the port (if you issue a netstat -an, do you see something on udp, also lsof -i | grep tftp)?' GM -- -- George Magklaras PhD RHCE no: 805008309135525 Senior Systems Engineer/IT Manager Biotek Center, University of Oslo EMBnet TMPC Chair http://folk.uio.no/georgios Tel: +47 22840535 -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list