>>> iperf 2.0.13 Downloading --2019-01-23 06:08:46-- http://downloads.sourceforge.net/project/iperf2/iperf-2.0.13.tar.gz Resolving downloads.sourceforge.net (downloads.sourceforge.net)... 216.105.38.13 Connecting to downloads.sourceforge.net (downloads.sourceforge.net)|216.105.38.13|:80... connected. HTTP request sent, awaiting response... 302 Found Location: https://netcologne.dl.sourceforge.net/project/iperf2/iperf-2.0.13.tar.gz [following] --2019-01-23 06:08:47-- https://netcologne.dl.sourceforge.net/project/iperf2/iperf-2.0.13.tar.gz Resolving netcologne.dl.sourceforge.net (netcologne.dl.sourceforge.net)... 78.35.24.46, 2001:4dd0:1234:6::5f Connecting to netcologne.dl.sourceforge.net (netcologne.dl.sourceforge.net)|78.35.24.46|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 326148 (319K) [application/x-gzip] Saving to: '/home/buildroot/buildroot-test/instance-0/output/build/.iperf-2.0.13.tar.gz.jZK1EQ/output' 0K .......... .......... .......... .......... .......... 15% 1.21M 0s 50K .......... .......... .......... .......... .......... 31% 1.38M 0s 100K .......... .......... .......... .......... .......... 47% 7.64M 0s 150K .......... .......... .......... .......... .......... 62% 9.08M 0s 200K .......... .......... .......... .......... .......... 78% 1.96M 0s 250K .......... .......... .......... .......... .......... 94% 6.87M 0s 300K .......... ........ 100% 15.1M=0.1s 2019-01-23 06:08:51 (2.58 MB/s) - '/home/buildroot/buildroot-test/instance-0/output/build/.iperf-2.0.13.tar.gz.jZK1EQ/output' saved [326148/326148] ERROR: iperf-2.0.13.tar.gz has wrong sha1 hash: ERROR: expected: 3eb21c329af811af53a2c816e1ed26b3dd2c259f ERROR: got : 0c7625c61087b9e6866421abb8bb533658b40a8d ERROR: Incomplete download, or man-in-the-middle (MITM) attack --2019-01-23 06:08:51-- http://sources.buildroot.net/iperf/iperf-2.0.13.tar.gz Resolving sources.buildroot.net (sources.buildroot.net)... 104.25.210.19, 104.25.211.19, 2606:4700:20::6819:d313, ... Connecting to sources.buildroot.net (sources.buildroot.net)|104.25.210.19|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2019-01-23 06:08:54 ERROR 404: Not Found. --2019-01-23 06:08:54-- http://sources.buildroot.net/iperf-2.0.13.tar.gz Resolving sources.buildroot.net (sources.buildroot.net)... 104.25.210.19, 104.25.211.19, 2606:4700:20::6819:d313, ... Connecting to sources.buildroot.net (sources.buildroot.net)|104.25.210.19|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2019-01-23 06:08:54 ERROR 404: Not Found. make: *** [/home/buildroot/buildroot-test/instance-0/output/build/iperf-2.0.13/.stamp_downloaded] Error 1 make: Leaving directory `/home/buildroot/buildroot-test/instance-0/buildroot'