On 2020-04-03 11:16, Luca Boccassi wrote:
On Tue, 31 Mar 2020 04:12:38 +0200 Adam Borowski <kilob...@angband.pl>
wrote:
Control: tags -1 -moreinfo
On Mon, Mar 30, 2020 at 10:36:03AM +0100, Luca Boccassi wrote:
On Mon, 2020-03-30 at 02:55 +0200, Adam Borowski wrote:
On a system with a bridge "ip a" says:
3: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default qlen 1000
link/ether 76:29:4f:cd:bd:87 brd ff:ff:ff:ff:ff:ff
altname �
��
altname ��!���
Kernel: Linux 5.6.0-00076-gbbfc4289910d (SMP w/4 CPU cores;
PREEMPT)
Those strings come from the kernel via netlink, and you seem to
have a
custom kernel. Can you reproduce with Debian's kernel?
Yeah, I've just tried. With 5.5.0-1 it's:
00000270 20 20 61 6c 74 6e 61 6d 65 20 c0 4e c2 b0 ff
ff | altname .N....|
00000280 0a 20 20 20 20 61 6c 74 6e 61 6d 65 20 d0 29
be |. altname .).|
00000290 b9 aa aa 0a 20 20 20 20 69 6e 65 74 20 31 30
2e |.... inet 10.|
Ok, I'll have a look once the 5.5 kernel hits backports, as it's
necessary to reproduce it.
Reproducible with kernel 5.5.13 from Debian unstable:
root@lt490:~# ip tuntap add mode tap footap1
root@lt490:~# ip link show footap1
8: footap1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT
group default qlen 1000
link/ether c2:20:9b:e6:0a:0a brd ff:ff:ff:ff:ff:ff
altname ??M?
altname ??M?
root@lt490:~# uname -a
Linux lt490 5.5.0-1-amd64 #1 SMP Debian 5.5.13-2 (2020-03-30) x86_64 GNU/Linux
Regards,
Stefan
