86Box on Linux Slackware, how to enable networking with pcap?

I have successfully run an old UNix SVR4 guest on Slackware 15.0 host. This is the config for unix "vm" [General] vid_renderer = qt_opengl3 confirm_save = 0 confirm_reset = 0 language = en-US confirm_exit = 0 vid_resize = 1 [Machine] machine = p5sp4 cpu_family = pentium_p5 cpu_speed = 66666666 cpu_multi = 1 cpu_use_dynarec = 1 time_sync = local fpu_type = internal mem_size = 16384 [Video] gfxcard = vga [Input devices] mouse_type = ltserial [Sound] fm_driver = nuked midi_device = system_midi midi_in_device = midi_in [Network] net_01_link = 0 net_02_link = 0 net_03_link = 0 net_04_link = 0 net_01_net_type = pcap net_01_host_device = br0 net_01_card = wd8003e [Storage controllers] hdc = internal cassette_mode = load [Ports (COM & LPT)] lpt1_device = text_prt [Hard disks] hdd_01_parameters = 63, 16, 1013, 0, ide hdd_01_fn = unix.img hdd_01_speed = ramdisk hdd_01_ide_channel = 0:0 [Floppy and CD-ROM drives] fdd_01_type = 525_2hd cdrom_01_parameters = 1, atapi cdrom_01_ide_channel = 0:1 [Western Digital WD8003E #1] mac = **:**:** base = 0300 irq = 2 ram_addr = D8000 The machine start and recognize the old WD card I can ping from internal to internal (sic!) but not from host to guest and vice-versa. This is the network situation, no interface appear sudo brctl show bridge name bridge id STP enabled interfaces br0 **************** yes eth0 sudo ip link show 1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: mtu 1500 qdisc pfifo_fast master br0 state UP mode DEFAULT group default qlen 1000 link/ether ************ brd ff:ff:ff:ff:ff:ff 3: br0: mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000 link/ether **:**:**:**:**:** brd ff:ff:ff:ff:ff:ff I have tried to bind to.. br0 (which is a bridge with eth0..) FAIL eth0 FAIL virbr0 (an adapter created by libvirt) FAIL