netbsd/amd64 5.1rc4 domU network on XEN4 and current dom0

[Pierre-Philipp Braun <pbraun%nethence.com@localhost>]

Hi,

I'm running a Slackware64 dom0 on top of XEN 4.0.1.  I tryed both xen/next
and xen/master kernel repositories, same problem : the NetBSD guest sees
its network interface (xennet0) but it's unusable.  It doesn't ping nor
responds to ping.  Another guest, RHEL5 (2.6.18) network works fine.  I
tryed both -bridge and -route configurations (I would like to keep the
latter), no changes.

Although the dom0 shows fe:ff:ff:ff:ff:ff for the virtual interfaces, and
show dom0's IP instead of the guests' one, the guest (both rhel and
netbsd)
do have the right MAC addresses and IP (rhel:192.168.0.11,
netbsd:192.168.0.12).

dom0 network (ifconfig) :

eth0      Link encap:Ethernet  HWaddr 90:e6:ba:a6:51:c7
          inet addr:192.168.0.10  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::92e6:baff:fea6:51c7/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5969 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5284 errors:0 dropped:0 overruns:0 carrier:1
          collisions:0 txqueuelen:1000
          RX bytes:1112951 (1.0 MiB)  TX bytes:898875 (877.8 KiB)
          Interrupt:239

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:28 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2384 (2.3 KiB)  TX bytes:2384 (2.3 KiB)

veth1     Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff
          inet addr:192.168.0.10  Bcast:192.168.0.255 
Mask:255.255.255.255
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:613 errors:0 dropped:0 overruns:0 frame:0
          TX packets:704 errors:0 dropped:16 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:48061 (46.9 KiB)  TX bytes:647065 (631.8 KiB)

veth2     Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff
          inet addr:192.168.0.10  Bcast:192.168.0.255 
Mask:255.255.255.255
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:1198 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)


NetBSD domU details (xm li -l):

(domain
    (domid 5)
    (cpu_weight 256)
    (cpu_cap 0)
    (bootloader )
    (on_crash restart)
    (uuid 0f5c77cf-bff6-dedf-0354-de123a69f583)
    (bootloader_args )
    (vcpus 1)
    (description )
    (name bsd)
    (cpus (()))
    (on_reboot restart)
    (on_poweroff destroy)
    (maxmem 512)
    (memory 512)
    (shadow_memory 0)
    (features )
    (on_xend_start ignore)
    (on_xend_stop ignore)
    (start_time 1285236882.6)
    (cpu_time 1.950968696)
    (online_vcpus 1)
    (image
        (linux
            (kernel /data/_shared/netbsd-XEN3_DOMU.gz)
            (superpages 0)
            (videoram 4)
            (pci ())
            (nomigrate 0)
            (tsc_mode 0)
            (notes)
        )
    )
    (status 2)
    (state -b----)
    (store_mfn 721859)
    (console_mfn 721858)
    (device
        (vif
            (uuid b13a1a04-aa56-a141-c781-5682be2521d2)
            (script /etc/xen/scripts/vif-route)
            (ip 192.168.0.12)
            (mac 00:16:3e:7b:bb:a4)
            (vifname veth2)
            (backend 0)
        )
    )
    (device
        (console
            (protocol vt100)
            (location 2)
            (uuid 4434c7a5-1170-f780-b959-a337866c4d52)
        )
    )
    (device
        (vbd
            (protocol x86_64-abi)
            (uuid 9ed2debb-3fcf-906d-4a77-289215c87a1a)
            (bootable 1)
            (dev xvda:disk)
            (uname file:/data/bsd/bsd.disk)
            (mode w)
            (backend 0)
            (VDI )
        )
    )
)


Help would be greatly appreciated :-)

Thanks
//Pierre-Philipp