Hi.
For years, we are using (not at the same time) the same IP on the wired and wifi interfaces on our laptops.
For Fedora-40 it was necessary to configure NetworkManager with:
[connection-dad-default] ipv4.dad-timeout=0
Ref: https://fedoraproject.org/wiki/Releases/40/ChangeSet#Enable_IPv4_Address_Con...
For Fedora-41, although this option is still valid, this doesn't work any more: when bringing up the wifi interface, the authentication and DHCP succeed but even the gateway is unreachable: no answer to ping.
Any idea ?
Thanks.
Traces (anonymised):
nmcli --ask connection up WIFI <snip> Connection successfully activated (D-Bus active <snip>
ip route default via a.b.c.254 dev wlan0 proto dhcp src a.b.c.92 metric 600 a.b.c.0/20 dev wlan0 proto kernel scope link src a.b.c.92 metric 600
ping -c 3 a.b.c.254 PING a.b.c.254 (a.b.c.254) 56(84) bytes of data. From a.b.c.92 icmp_seq=1 Destination Host Unreachable From a.b.c.92 icmp_seq=2 Destination Host Unreachable From a.b.c.92 icmp_seq=3 Destination Host Unreachable
--- a.b.c.254 ping statistics --- 3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2088ms