On Sat, 2022-03-26 at 15:41 -0700, Geoffrey Leach wrote: > Device vendor insists on a netmask 255.255.0.0, so > % ifconfig eno1 169.254.10.6 netmask 255.255.0.0 > which changes netmask, but it soon reverts to the original > value 255.255.255.255 > > ifdown/ifup does not change the situation What device vendor? What kind of device? What are trying to do? 169.254.x.y addresses are link-local addresses. Used by machines automatically setting their own IPs to a random address (rather than by an external DHCP server giving them an IP, or you manually setting one). As such, those addresses will only work within their own little network. Generally speaking, computers will automatically use link-local addresses as a last resort when not configured in some other way, and it will have the expected 255.255.0.0 netmask. If something else sets its address, you'll get whatever *that* dictated. I've never seen link-local addresses work outside a LAN. i.e. all computers inside the LAN on those addresses can intercommunicate, but none can access the internet through the router. Though I've never tried setting the router into that address pool, to see if it can act as a gateway, nor do I want to (it's a pain to reconfigure, and if I had to factory reset there's a lot of work that needs doing to unset the crappy factory default settings). -- uname -rsvp Linux 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed Feb 23 16:47:03 UTC 2022 x86_64 Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx 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/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
