Hello OpenBSD team & developers, first of all, thank you for release 7.4.
I am using the umb(4) interface for a temporary ad-hoc router with a SIM card from Mobile Vikings in Belgium. It works well with pppd(8) / chat(8) and every 24 hours, after the mobile provider changes the IP addr, it gets a new IPv4 addr. (BIG thank you, for make it happen, that the umb(4) devices are also accessible with umsm(4)/ucom(4).umb0: flags=808851<UP,POINTOPOINT,RUNNING,SIMPLEX,MULTICAST,AUTOCONF4> mtu 1500 index 10 priority 6 llprio 3 roaming enabled registration home network state up cell-class LTE rssi -101dBm speed 572Mbps up 572Mbps down SIM initialized PIN valid (3 attempts left) subscriber-id 206010000000000 ICC-id 89323000000000000000 device EM12-G IMEI 869710000000000 firmware EM12GPAR01A21M4G APN INTERNET.PROXIMUS.BE provider Mobile Vikings provider-id 20601 dns 80.201.237.238 80.201.237.239 groups: egress status: active inet 100.92.87.146 --> 100.92.87.145 netmask 0xfffffffc inet 100.85.225.238 --> 100.85.225.237 netmask 0xfffffffc To the problem: Once the provider changes the IP addr every night at around 0:00h, I get a second IP addr on umb0, what confuses routing. The workaround here is only ifconfig umb0 down sh -x /etc/netstart umb0 rcctl restart unbound The system is a fresh installed OpenBSD 7.4 with recent firmware. How can this be solved? Best regards, Stefan Kapfhammer