On Fri, Oct 14, 2005 at 12:09:36AM +0200, Florian Lohoff wrote: > > 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 > > http://www.kernel.org/pub/scm/network/tftp/tftp-hpa.git; see also > > http://www.linux-mips.org/wiki/ARC#tftp-hpa. Please send test reports to > > syslinux@xxxxxxxxx and linux-mips@xxxxxxxxxxxxxxx > > I made a patch against tftpd-hpa for disabling path MTU discovery - Its > in the Debian BTS: > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=316616 > > It should already be merged upstream. User "-F" to disable PMTUd. Never made it to HPA - HPA wrote the patches for these two bugs himself yesterday when I mentioned the problem to him. His patches are different in the he disables PMTU discovery entirely - it's not useful for TFTP. And your patch doesn't work around the other firmware bug which requires restricting the port range. We had to get rid of the currently recommended workaround - it seriously restricts the IP stack; cripples is probably the right expression for busy servers. Patch rotting in the Debian bugtracking system seems to become a classic ;-) Ralf
