server:

emerge --buildpkg traceroute

du -b /usr/portage/packages/All/traceroute-2.0.12.tbz2
65809	/usr/portage/packages/All/traceroute-2.0.12.tbz2

cat /var/db/pkg/net-analyzer/traceroute-2.0.12/SIZE 
90679

client:

emerge --getbinpkg --usepkg traceroute 

!!! Error fetching binhost package info from 'ftp://login:pass@10.0.0.31'
!!! [Errno ftp error] [Errno ftp error] 550 Can't change directory to Packages: No such file or directory


!!! Digest verification failed:
!!! /usr/portage/packages/All/traceroute-2.0.12.tbz2
!!! Reason: Filesize does not match recorded size
!!! Got: 65809
!!! Expected: 90679
File renamed to '/usr/portage/packages/All/traceroute-2.0.12.tbz2._checksum_failure_.U_ZGz3'

portage-2.1.7.16