pe 28.11.2025 klo 12.43 Kamil Jońca ([email protected]) kirjoitti:
>
> Martin-Éric Racine <[email protected]> writes:
>
> [...]
> to get rid of doubts:
>
> uwl9 - interface NOT in /etc/network/interfaces
>
> 1. put interface into usb port
> 2. issue "sudo /sbin/wpa_cli -g /run/wpa_supplicant/global interface_add uwl9 
> /etc/wpa_supplicant/wpa_supplicant.conf"
> 3. issue "sudo ip link set up dev uwl9"
> 4. select network with "sudo wpa_cli -i uwl9"
> 5. affter few minutes still is:
>
> ===================
> 17: uwl9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
> group default qlen 1000
>     link/ether 54:07:7d:9c:03:28 brd ff:ff:ff:ff:ff:ff
>     inet6 fe80::5607:7dff:fe9c:328/64 scope link proto kernel_ll
>        valid_lft forever preferred_lft forever
> ===================
>
> important note: at first time interface sometimes get IP addr, probably
> we need turn it off  and on again to observe problem.
>
> Another example:
>
> wilga is mobile router, which can be connected by usb and presents RNDIS
> interface. No ifupdown/configuration
> Issuing first time
> --8<---------------cut here---------------start------------->8---
> sudo ip link set up dev wilga
> --8<---------------cut here---------------end--------------->8---
> we got interface properly configured,
> then
>
> - sudo ip link set down dev wilga
>
> - plug out
>
> - plug in again
>
> - issue sudo ip link set up dev wilga
> and still is:
>
> --8<---------------cut here---------------start------------->8---
> 20: wilga: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state 
> UNKNOWN group default qlen 1000
>     link/ether 86:8f:d4:e1:be:ca brd ff:ff:ff:ff:ff:ff
>     inet6 fe80::848f:d4ff:fee1:beca/64 scope link proto kernel_ll
>        valid_lft forever preferred_lft forever
> --8<---------------cut here---------------end--------------->8---
>
> The same command with 1:10.2.4-4 properly get address:
>
> 20: wilga: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state 
> UNKNOWN group default qlen 1000
>     link/ether 86:8f:d4:e1:be:ca brd ff:ff:ff:ff:ff:ff
>     inet 192.168.207.160/24 brd 192.168.207.255 scope global dynamic 
> noprefixroute wilga
>        valid_lft 86400sec preferred_lft 75600sec
>     inet6 fe80::7d75:4f39:5287:eb12/64 scope link
>        valid_lft forever preferred_lft forever

Please put that in the upstream bug report. Thanks.

Martin-Éric

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