[RndTbl] OpenWrt problem with tftp

John Lange john.lange at open-it.ca
Thu May 18 18:38:00 CDT 2006

I believe that I'm having a problem with the OpenWRT and tftp.

I'm trying to fetch a file outside of the OpenWRT firewall using tftp
but on the server side I see these messages:

in.tftpd[26104]: tftpd: read(ack): Connection refused

The client just times out.

I suspect its a nat issue with the OpenWRT perhaps related to the fact
the OpenWRT listens on a tftp port for uploads of firmware?

Or is tftp generally tricky through nat? I can't see why it would be.

Is there some kind of iptables parameter that needs to be added? Scant
little comes up on google for iptables, nat and tftp.

John Lange
OpenIT ltd. www.Open-IT.ca (204) 885 0872
VoIP, Web services, Linux Consulting, Server Co-Location

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