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<DIV><FONT face=Arial size=2>Well..</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>TFTP is not nat friendly... If the port 1024-1029
are blocked by any ISP or port 69 is not open... then tftp will not
work.</FONT></DIV>
<DIV><FONT face=Arial size=2>however, with the nature of the message John is
getting, seems like xinetd is refusing the connection to tftp server on
OpenWrt</FONT></DIV>
<DIV><FONT face=Arial size=2>Add to hosts.allow tftp: ALL..</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>It should work </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Hitesh</FONT></DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=sean@ertw.com href="mailto:sean@ertw.com">Sean Walberg</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=asterisk@muug.mb.ca
href="mailto:asterisk@muug.mb.ca">Asterisk Open Source PBX SIG</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, May 18, 2006 7:41
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [*] OpenWrt problem with
tftp</DIV>
<DIV><BR></DIV>xinetd uses tcp wrappers (/etc/hosts.{allow,deny}), plus any
statements in /etc/xinetd.d/tftp even though it's a UDP service... Are
you denying it somehow through there?<BR><BR>I'm pretty sure tftp is NAT
friendly. Since it's hitting syslog, my guess is the wrappers config.
<BR><BR>Sean<BR><BR>
<DIV><SPAN class=gmail_quote>On 5/18/06, <B class=gmail_sendername>John
Lange</B> <<A
href="mailto:john.lange@open-it.ca">john.lange@open-it.ca</A>>
wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">I
believe that I'm having a problem with the OpenWRT and tftp.<BR><BR>I'm
trying to fetch a file outside of the OpenWRT firewall using tftp<BR>but on
the server side I see these messages:<BR><BR>in.tftpd[26104]: tftpd:
read(ack): Connection refused <BR><BR>The client just times out.<BR><BR>I
suspect its a nat issue with the OpenWRT perhaps related to the fact<BR>the
OpenWRT listens on a tftp port for uploads of firmware?<BR><BR>Or is tftp
generally tricky through nat? I can't see why it would be. <BR><BR>Is there
some kind of iptables parameter that needs to be added? Scant<BR>little
comes up on google for iptables, nat and tftp.<BR><BR>--<BR>John
Lange<BR>OpenIT ltd. <A href="http://www.Open-IT.ca">www.Open-IT.ca
</A>(204) 885 0872<BR>VoIP, Web services, Linux Consulting, Server
Co-Location<BR><BR>_______________________________________________<BR>Asterisk
mailing list<BR><A href="mailto:Asterisk@muug.mb.ca">Asterisk@muug.mb.ca</A>
<BR><A
href="http://www.muug.mb.ca/mailman/listinfo/asterisk">http://www.muug.mb.ca/mailman/listinfo/asterisk</A><BR><BR></BLOCKQUOTE></DIV><BR><BR
clear=all><BR>-- <BR>Sean Walberg <<A
href="mailto:sean@ertw.com">sean@ertw.com </A>> <A
href="http://ertw.com/">http://ertw.com/</A>
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