Re: [Xen-users] domU HVM network problem

[Carles Pina i Estany <carles@xxxxxxxx>]

Hello,

On Mar/09/2008, Max E. Baro wrote:
> By network address I mean in the machine.cfg on the vif= line instead of
> assigning an IP address I use the network address which in TCP/IP end in a
> zero.  This is because the VIF is not actually the tunnel to the domU nic.
> My vif line looks like this:
> 
> vif = [ 'type=ioemu, vifname=vif0.0, ip=192.168.0.0, mac=FA:CE:00:00:00:01'

correct, yesterday night I tried (in ip) the same LAN than eth0 in dom0
and Xen was failing to create the machine, now is fine.

> You have to make sure the tuntap module is loaded by typing lsmod:

yes, it's there

> in dom0:
> tap0      Link encap:Ethernet  HWaddr CE:B9:F8:5E:22:D1
>           inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0

same here

> in domU:
> [root@Xdom1 ~]# ip r
> 192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.2
> default via 192.168.0.1 dev eth0

I cannot ping from domU to the 192.168.0.1 :-(

> My dom0 and each of my domU's are all on different subnets so I can
> use dom0 as a router.  
> 
> I hope this helps.

192.168.10.150 is my domU IP
192.168.10.1 is my dom0 IP for tap0
192.168.0.1 is my dom0 IP for eth0

If I ping from domU to dom0 I can see "something":
-----------
servidor:/etc/xen/scripts# tcpdump -i tap0
tcpdump: verbose output suppressed, use -v or -vv for full protocol
decode
listening on tap0, link-type EN10MB (Ethernet), capture size 96 bytes
09:28:29.965232 arp who-has 192.168.10.1 tell 192.168.10.150
09:28:30.965280 arp who-has 192.168.10.1 tell 192.168.10.150
09:28:31.965310 arp who-has 192.168.10.1 tell 192.168.10.150
09:28:33.965421 arp who-has 192.168.10.1 tell 192.168.10.150
-----------

But not answering.

My dom0 network configuration is:
-------
tap0      Link encap:Ethernet  HWaddr 7E:2D:04:8D:94:CF
          inet addr:192.168.10.1  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::7c2d:4ff:fe8d:94cf/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:404 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:24848 (24.2 KiB)  TX bytes:972 (972.0 b)

vif38.0   Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet addr:192.168.10.0  Bcast:192.168.10.255  Mask:255.255.255.255
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

eth0      Link encap:Ethernet  HWaddr 00:1A:A0:D9:D5:CE
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::21a:a0ff:fed9:d5ce/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3515449 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3748272 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1491664039 (1.3 GiB)  TX bytes:3251114826 (3.0 GiB)
          Interrupt:16
-------

(I executed echo 1 > /proc/sys/net/ipv4/conf/tun0/proxy_arp, just in case)

What we have different?

Thank you for all your help!

-- 
Carles Pina i Estany            GPG id: 0x8CBDAE64
        http://pinux.info       Manresa - Barcelona

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users