http://bugzilla.opensuse.org/show_bug.cgi?id=1154552 Bug ID: 1154552 Summary: arp-scan shows no output (other than header and footer) from Tumbleweed snapshot 2019-10-07 Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: openSUSE Factory Status: NEW Severity: Major Priority: P5 - None Component: Security Assignee: security-team@suse.de Reporter: paco.cruz.casado@gmail.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Tumbleweed in x86_64, any snapshot from 20191007 (included) to 20191016 shows this behavior. arp-scan -l shows no output (other than header and footer) arp-scan -x -l shows no output at all The packets are sent and received (you can see them with Wireshark using filter "arp.opcode==2"), but there is no output in arp-scan. Steps to reproduce: (I am using tumbleweed-cli to switch between Tumbleweed snapshots) 1. Install Tumbleweed snapshot 20191004 or previous 2. Install and run "arp-scan -l" or "arp-scan -x -l" (to suppress header an footer lines) you get the list of MACS - IPs active in your localnet 3. Create a snapshot with snapper, so you can rollback to it later 4. Update Tumbleweed to a snapshot newer than 20191004, or to the current version 20191016 (at the time of this report) 5. Install Wireshark and start capturing with filter "arp.opcode==2" (arp-replay) 5. Run "arp-scan -l" or "arp-scan -x -l" (to supres header an footer lines) Expected result: list of MACS - IPs active in localnet Obtained result: only header and footer lines (without -x option, or no output at all with -x option). 6. Wireshark shows that arp-replay packets are received, but arp-scan does not report the MACs - IPs. 7. Use "snapper rollback #(number)" to go back to the snapshot that you took at step 3 (or alternatively boot from a read-only snapshot previous to the update in step 4) 8. run "arp-scan -l" or "arp-scan -x -l" and check that you get the expected result again. I am using arp-scan in a cron job to dinamically construct-update a list of active MACs-IPs in my local net to monitor the active PCs. I cannot update Tumbleweed from snapshot 2019-10-04 due to this arp-scan malfunction. I have tried installing a previous version or arp-scan in the updated Tumbleweed, to not avail. ¿Any ideas? -- You are receiving this mail because: You are on the CC list for the bug.