NDT-DEV email list created

[Joey Freeland <>]

Hey Aaron and Richard,

Thanks for putting me in touch with the dev team.  I was able to get it working with enough tinkering.  I ended up not trying to cross compile via the SDK but instead created an OpenWRT package and this seemed to do the trick:

<snip>

jfreeland@slinky:~$ cat openwrt/trunk/package/feeds/packages/ndt/Makefile 

#

# Let's see if this works..

#

include $(TOPDIR)/rules.mk

PKG_NAME:=ndt

PKG_VERSION:=3.6.4

PKG_RELEASE:=3

PKG_BUILD_DIR:=${BUILD_DIR}/ndt-$(PKG_VERSION)

PKG_SOURCE:=ndt-$(PKG_VERSION).tar.gz

PKG_SOURCE_URL:=http://software.internet2.edu/sources/ndt

include $(INCLUDE_DIR)/package.mk

define Package/ndt

  SECTION:=utils

  CATEGORY:=Utilities

  DEPENDS:=+libpthread +zlib

  TITLE:=Network Testing Tool

endef

define Build/Compile/Default

$(MAKE) -C $(PKG_BUILD_DIR)

endef

define Package/ndt/install

$(INSTALL_DIR) $(1)/sbin

$(CP) $(PKG_BUILD_DIR)/src/web100clt $(1)/sbin/

endef

$(eval $(call BuildPackage,ndt))

</snip>

<snip>

root@OpenWrt:~# uname -a

Linux OpenWrt 3.3.8 #1 Thu Nov 15 19:56:48 SGT 2012 mips GNU/Linux

root@OpenWrt:~# web100clt -n ndt.iupui.donar.measurement-lab.org

Testing network path for configuration and performance problems  --  Using IPv4 address

Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done

checking for firewalls . . . . . . . . . . . . . . . . . . .  Done

running 10s outbound test (client to server) . . . . .  244.00 kb/s

running 10s inbound test (server to client) . . . . . . 538.11 kb/s

Your host is connected to a Cable/DSL modem

Information: Other network traffic is congesting the link

Information [C2S]: Packet queuing detected: 22.31% (local buffers)

Server 'ndt.iupui.donar.measurement-lab.org' is not behind a firewall. [Connection to the ephemeral port was successful]

Client is probably behind a firewall. [Connection to the ephemeral port failed]

Packet size is preserved End-to-End

Server IP addresses are preserved End-to-End

Information: Network Address Translation (NAT) box is modifying the Client's IP address

Server says [203.117.37.53] but Client says [ 192.168.43.177]

</snip>

On Fri, Nov 16, 2012 at 1:54 AM, Aaron Brown <> wrote:

Could you send the logs when you have a chance? I've not tried cross-compiling NDT, but may be able to help debug.

Thanks for the super fast response and thanks for your work on NDT!  Unfortunately I'm on the go right now, but I'll give 3.6.5.1 a try soon.

--

Joey Freeland

Technical Program Manager

Google Asia Pacific Pte. Ltd.

Singapore