>>> iperf 2.0.13 Downloading --2019-01-23 14:42:52-- 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://pilotfiber.dl.sourceforge.net/project/iperf2/iperf-2.0.13.tar.gz [following] --2019-01-23 14:42:52-- https://pilotfiber.dl.sourceforge.net/project/iperf2/iperf-2.0.13.tar.gz Loaded CA certificate '/etc/ssl/certs/ca-certificates.crt' Resolving pilotfiber.dl.sourceforge.net (pilotfiber.dl.sourceforge.net)... 69.12.26.12 Connecting to pilotfiber.dl.sourceforge.net (pilotfiber.dl.sourceforge.net)|69.12.26.12|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 326148 (319K) [application/x-gzip] Saving to: '/data/buildroot/buildroot-test/instance-1/output/build/.iperf-2.0.13.tar.gz.5kTpPB/output' 0K .......... .......... .......... .......... .......... 15% 264K 1s 50K .......... .......... .......... .......... .......... 31% 394K 1s 100K .......... .......... .......... .......... .......... 47% 737K 0s 150K .......... .......... .......... .......... .......... 62% 776K 0s 200K .......... .......... .......... .......... .......... 78% 731K 0s 250K .......... .......... .......... .......... .......... 94% 742K 0s 300K .......... ........ 100% 657K=0.6s 2019-01-23 14:42:53 (520 KB/s) - '/data/buildroot/buildroot-test/instance-1/output/build/.iperf-2.0.13.tar.gz.5kTpPB/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 14:42:53-- http://sources.buildroot.net/iperf/iperf-2.0.13.tar.gz Resolving sources.buildroot.net (sources.buildroot.net)... 2606:4700:20::6819:d313, 2606:4700:20::6819:d213, 104.25.210.19, ... Connecting to sources.buildroot.net (sources.buildroot.net)|2606:4700:20::6819:d313|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2019-01-23 14:42:54 ERROR 404: Not Found. --2019-01-23 14:42:54-- http://sources.buildroot.net/iperf-2.0.13.tar.gz Resolving sources.buildroot.net (sources.buildroot.net)... 2606:4700:20::6819:d213, 2606:4700:20::6819:d313, 104.25.211.19, ... Connecting to sources.buildroot.net (sources.buildroot.net)|2606:4700:20::6819:d213|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2019-01-23 14:42:54 ERROR 404: Not Found. make: *** [package/pkg-generic.mk:138: /data/buildroot/buildroot-test/instance-1/output/build/iperf-2.0.13/.stamp_downloaded] Error 1 make: Leaving directory '/data/buildroot/buildroot-test/instance-1/buildroot'