I wholly depend on you guys to get this going. So please respond.
-Mike.
From: "Michael Anburaj" <embeddedeng@xxxxxxxxxxx> Reply-To: shrike-list@xxxxxxxxxx To: shrike-list@xxxxxxxxxx Subject: udp port 69 (tftp) unreachable Date: Wed, 07 May 2003 21:10:08 +0000
Hi,
When I do tftp from my TFTP client (Target board running YAMON) it fails. The TFTP server is configured on a stand-alone PC running RH Linux 9.
Info. about the protocols on the Host PC: ---------------------------------
[root@xxxxxxxxx root]# lsof -c x -a -i COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME xinetd 1757 root 5u IPv4 2205 TCP localhost.localdomain:1025 (LISTEN) xinetd 1757 root 6u IPv4 2208 UDP *:tftp
Captured using $ tcpdump -n (while tftp client was actively trying)
-----------------------
20:56:40.615815 arp who-has 4.42.102.5 tell 4.42.102.6
20:56:40.615890 arp reply 4.42.102.5 is-at 0:e0:98:9e:84:96
20:56:40.622048 4.42.102.6.1040 > 4.42.102.5.tftp: 20 RRQ "vmlinux.rec" (DF)
20:56:40.622112 4.42.102.5 > 4.42.102.6: icmp: 4.42.102.5 udp port tftp unreachable [tos 0xc0]
20:56:41.699926 4.42.102.6.1040 > 4.42.102.5.tftp: 20 RRQ "vmlinux.rec" (DF)
20:56:41.700006 4.42.102.5 > 4.42.102.6: icmp: 4.42.102.5 udp port tftp unreachable [tos 0xc0]
Please tell me why the PC host running tftp server is replying udp port tftp unreachable?
Could this be firewall issue? The RH linux 9 installation is new & its at home.
[root@xxxxxxxxx root]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination RH-Lokkit-0-50-INPUT all -- anywhere anywhere
Chain FORWARD (policy ACCEPT) target prot opt source destination RH-Lokkit-0-50-INPUT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT) target prot opt source destination
Chain RH-Lokkit-0-50-INPUT (2 references) target prot opt source destination ACCEPT udp -- anywhere anywhere udp spts:bootps:bootpc dpts:bootps:bootpc ACCEPT udp -- anywhere anywhere udp spts:bootps:bootpc dpts:bootps:bootpc ACCEPT all -- anywhere anywhere REJECT tcp -- anywhere anywhere tcp dpts:0:1023 flags:SYN,RST,ACK/SYN reject-with icmp-port-unreachable REJECT tcp -- anywhere anywhere tcp dpt:nfs flags:SYN,RST,ACK/SYN reject-with icmp-port-unreachable REJECT udp -- anywhere anywhere udp dpts:0:1023 reject-with icmp-port-unreachable REJECT udp -- anywhere anywhere udp dpt:nfs reject-with icmp-port-unreachable REJECT tcp -- anywhere anywhere tcp dpts:x11:6009 flags:SYN,RST,ACK/SYN reject-with icmp-port-unreachable REJECT tcp -- anywhere anywhere tcp dpt:xfs flags:SYN,RST,ACK/SYN reject-with icmp-port-unreachable [root@xxxxxxxxx root]#
Both hosts.allow and hosts.deny files under /etc are empty.
Please tell me what other issue this might be or a procedure to debug this further.
Thanks, -Mike.
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