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Tftp problems with ARC firmware

Subject: Tftp problems with ARC firmware
From: Ralf Baechle <>
Date: Thu, 13 Oct 2005 20:32:25 +0100
Original-recipient: rfc822;
User-agent: Mutt/
I'd like to point those who you need to use these crude workarounds:

  echo 1 > /proc/sys/net/ipv4/ip_no_pmtu_disc
  echo 4096 32767 > /proc/sys/net/ipv4/ip_local_port_range

at a new version of tftp-hpa which solves the PMTU problem by disabling it
only for the tftp client and introduces a new -R begin:end option which
allows to limit the port number range.  The changes are about to become
available in the tftp-hpa git repository at; see also  Please send test reports to and


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