Re: mcx(4) and bridge(4)

[Hauke Fath <hf%spg.tu-darmstadt.de@localhost>]

On 4/11/25 19:12, Manuel Bouyer wrote:
> I'd say the mcx driver fails to receive packets that are not for
> its owm mac address. Maybe an issue with promiscious mode.
That sounds plausible. mcx0 claims it's running in promiscuous mode, though.

> What does ifconfig in the dom0 say ?
% ifconfig mcx0
mcx0: flags=0x8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
        capabilities=0x3ff00<IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx>
 
capabilities=0x3ff00<UDP4CSUM_Rx,UDP4CSUM_Tx,TCP6CSUM_Rx,TCP6CSUM_Tx>
        capabilities=0x3ff00<UDP6CSUM_Rx,UDP6CSUM_Tx>
        enabled=0x3ff00<IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx>
        enabled=0x3ff00<UDP4CSUM_Rx,UDP4CSUM_Tx,TCP6CSUM_Rx,TCP6CSUM_Tx>
        enabled=0x3ff00<UDP6CSUM_Rx,UDP6CSUM_Tx>
        ec_capabilities=0x7<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU>
        ec_enabled=0x1<VLAN_MTU>
        address: 98:03:9b:0e:f0:32
        media: Ethernet autoselect (10GBASE-CR1 full-duplex)
        status: active
        inet6 fe80::9a03:9bff:fe0e:f032%mcx0/64 flags 0 scopeid 0x1
% ifconfig vlan2
vlan2: flags=0x8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
        capabilities=0x3ff00<IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx>
 
capabilities=0x3ff00<UDP4CSUM_Rx,UDP4CSUM_Tx,TCP6CSUM_Rx,TCP6CSUM_Tx>
        capabilities=0x3ff00<UDP6CSUM_Rx,UDP6CSUM_Tx>
        enabled=0
        vlan: 2 parent: mcx0
        address: 98:03:9b:0e:f0:32
        status: active
        inet6 fe80::9a03:9bff:fe0e:f032%vlan2/64 flags 0 scopeid 0x6
        inet 130.83.AA.BB/27 broadcast 130.83.AA.CC flags 0

% brconfig bridge0
bridge0: flags=41<UP,RUNNING>
        Configuration:
                priority 32768 hellotime 2 fwddelay 15 maxage 20
                ipfilter disabled flags 0x0
        Interfaces:
                xvif2i0 flags=3<LEARNING,DISCOVER>
                        port 14 priority 128
                vlan2 flags=3<LEARNING,DISCOVER>
                        port 6 priority 128
        Address cache (max cache: 100, timeout: 1200):
                00:16:3e:10:4b:11 xvif2i0 1182 flags=0<>
                00:16:3e:17:4c:11 vlan2 918 flags=0<>
                a0:36:9f:25:62:26 vlan2 518 flags=0<>
                00:30:48:59:e8:c2 vlan2 1134 flags=0<>
                00:16:3e:17:4b:11 vlan2 19 flags=0<>
                00:25:90:aa:bf:8a vlan2 1162 flags=0<>
                00:30:48:58:5f:64 vlan2 1069 flags=0<>
                a0:36:9f:23:22:7a vlan2 809 flags=0<>
                00:16:3e:00:4a:11 vlan2 631 flags=0<>
                00:30:48:7e:04:b8 vlan2 886 flags=0<>
                00:25:90:82:33:46 vlan2 1188 flags=0<>
                24:8a:07:ba:61:e0 vlan2 1200 flags=0<>
                00:16:3e:00:47:11 vlan2 1133 flags=0<>
                14:23:f2:a5:bd:50 vlan2 1199 flags=0<>
                00:16:3e:00:4b:11 vlan2 1062 flags=0<>
%

Cheerio,
Hauke

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