Homepage link "http://www.nta-monitor.com/tools-resources/security-tools/arp-scan" is dead (HTTP error 404) for more than a month. /usr/portage/net-analyzer/arp-scan # GENTOO_MIRRORS="" ebuild arp-scan-1.9.ebuild fetch >>> Downloading 'http://www.nta-monitor.com/files/arp-scan/arp-scan-1.9.tar.gz' --2019-03-15 04:12:46-- http://www.nta-monitor.com/files/arp-scan/arp-scan-1.9.tar.gz Resolving www.nta-monitor.com... 89.187.86.9 Connecting to www.nta-monitor.com|89.187.86.9|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2019-03-15 04:12:46 ERROR 404: Not Found. !!! Couldn't download 'arp-scan-1.9.tar.gz'. Aborting. found with https://repology.org/repository/gentoo/problems and verified.
Apparently you missed this one: commit ef238d37306ff545b0651d088d1dd78635b9fb7e Author: Jeroen Roovers <jer@gentoo.org> Date: Mon Apr 10 10:27:53 2017 +0200 net-analyzer/arp-scan: Add Github HOMEPAGE, update EAPI. Package-Manager: Portage-2.3.5, Repoman-2.3.2
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b30fc0fbf9d5884b9650ca14b4cb373559c513cb commit b30fc0fbf9d5884b9650ca14b4cb373559c513cb Author: Jeroen Roovers <jer@gentoo.org> AuthorDate: 2019-03-15 09:28:35 +0000 Commit: Jeroen Roovers <jer@gentoo.org> CommitDate: 2019-03-15 09:29:43 +0000 net-analyzer/arp-scan: Version 1.9.5 Package-Manager: Portage-2.3.62, Repoman-2.3.12 Fixes: https://bugs.gentoo.org/680408 Signed-off-by: Jeroen Roovers <jer@gentoo.org> net-analyzer/arp-scan/Manifest | 1 + net-analyzer/arp-scan/arp-scan-1.9.5.ebuild | 26 ++++++++++++++++++++++++++ 2 files changed, 27 insertions(+)