building /gnu/store/6smkn7dk6m8w7h7yw0v0lfn0w72q4zxm-agg-2.5.tar.gz.drv... Starting download of /gnu/store/8pgqgdcmc10ncj8bhkyi5ilx6mmfk8y1-agg-2.5.tar.gz From ftp://ftp.fau.de/gentoo/distfiles/agg-2.5.tar.gz... Throw to key `ftp-error' with args `(# "PASV" 501 "PASV: Operation not permitted\r")'. In comparison, that works just fine with wget: $ wget -d -c 'ftp://ftp.fau.de/gentoo/distfiles/agg-2.5.tar.gz' [...] ==> SIZE agg-2.5.tar.gz ... --> SIZE agg-2.5.tar.gz 213 564313 564313 conaddr is: 2001:638:a000:1021:21::1 ==> EPSV ... --> EPSV 2 229 Entering Extended Passive Mode (|||51160|) respline is 229 Entering Extended Passive Mode (|||51160|) trying to connect to 2001:638:a000:1021:21::1 port 51160 Created socket 4. fertig. ==> RETR agg-2.5.tar.gz ... --> RETR agg-2.5.tar.gz