Once upon a time, Aoife Moloney <amolo...@redhat.com> said: > Enable IPv4 Address Conflict Detection by default in NetworkManager.
Huh, I didn't realize NM didn't already do this... ye olde network-scripts did. > To the rescue comes [https://www.rfc-editor.org/rfc/rfc5227 RFC 5227] > (“IPv4 Address Conflict Detection”) which provides a mechanism to > detect address conflicts. A host implementing Address Conflict > Detection (from now on “ACD”) sends ARP probes for each IP address it > wants to use; if another host replies, the address is already in use > and can’t be configured on the interface. How does NM handle a duplicate address if there are multiple addresses configured on the interface? Does it continue with the non-dupe addresses or deconfigure the whole interface? When there are multiple addresses configured, does NM run DAD in series or parallel? > This change aims at enabling ACD by default in Fedora 40, by setting > the default value to 3000ms. 3 seconds seems kind of high (IIRC network-scripts used 1 second). -- Chris Adams <li...@cmadams.net> -- _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
