[Xen-users] Help me to set up network (routes)

[AlannY <m@xxxxxxxxx>]

Hi there, I'm Alan.

2nd day I'm trying to set up network in Xen. Firstly, I set up it via 
bridges and it have worked in some success ;-) But bridges is not what I 
want.
So, I decide to reconstruct network with routes. I set up everything as 
many tutorials said, but nothing happens: I can't ping domU from host 
and can't ping dom0 from guest ;-(
So, below, I will show what I'm doing, I would like to hear what I'm 
doing wrong.
Thanks for your patience.

================
Dom0 have one (1) working net card: eth0

with IP for external LAN: 10.9.3.92
and gateway for with IP: 10.9.3.1

---------
My xend-config.sxp have:

(network-script network-route)
(vif-script vif-route)

---------

%# cat /proc/sys/net/ipv4/conf/all/proxy_arp
1
%# cat /proc/sys/net/ipv4/conf/eth0/proxy_arp
1
%# cat /proc/sys/net/ipv4/ip_forward
1

---------

In my %.vm (Virtual Machine) file I have:

vif  = [ 'ip=10.0.2.2' ]

--------

In my DomU (Windows in my case) I set up network interface as follow:

address 10.0.2.2
netmask 255.255.255.0
gateway 10.9.3.1  # it's a gateway which gave me ISP (see above)

========
After "xm create ...":

--------

%# ip r
[...]
10.0.2.2 dev vif2.0  scope link  src 10.9.3.92
[...]

-------

%# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:e0:4c:a0:b0:20
          inet addr:10.9.3.92  Bcast:10.9.3.255  Mask:255.255.255.0
          inet6 addr: fe80::2e0:4cff:fea0:b020/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2158921 errors:1 dropped:78 overruns:1 frame:0
          TX packets:1918655 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2215803222 (2.0 GiB)  TX bytes:1294017960 (1.2 GiB)
          Interrupt:17 Base address:0xd000
[...]
tap2.0    Link encap:Ethernet  HWaddr 4e:69:00:fd:f0:48
          inet6 addr: fe80::4c69:ff:fefd:f048/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:26 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:2343 (2.2 KiB)  TX bytes:468 (468.0 B)

vif2.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff
          inet addr:10.9.3.92  Bcast:10.255.255.255  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:6 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

--------

%# route -n
[...]
10.0.2.2        0.0.0.0         255.255.255.255 UH    0      0        0 
vif2.0
[...]
10.9.3.0        0.0.0.0         255.255.255.0   U     0      0        0 eth0
[...]
0.0.0.0         172.16.0.1      0.0.0.0         UG    0      0        0 ppp0

The last line is doesn't matter

---------

%# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  10.0.2.2             anywhere            PHYSDEV 
match --physdev-in vif2.0
ACCEPT     udp  --  anywhere             anywhere            PHYSDEV 
match --physdev-in vif2.0 udp spt:bootpc dpt:bootps
Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

%# iptables -t nat -L
Chain PREROUTING (policy ACCEPT)
target     prot opt source               destination

Chain POSTROUTING (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

===========

from Dom0:

%# ping 10.0.2.2
PING 10.0.2.2 (10.0.2.2) 56(84) bytes of data.
From 10.9.3.92 icmp_seq=2 Destination Host Unreachable
From 10.9.3.92 icmp_seq=3 Destination Host Unreachable
From 10.9.3.92 icmp_seq=4 Destination Host Unreachable

from DomU:
%# ping 10.9.3.92
ping time out
ping time out
ping time out
ping time out

Also in Dom0:
%# tcpdump | grep 10.0.2.2
shows nothing ;-(

=========

Thank for patience.

P.S. Gentoo user ;-)

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