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xen-users
Re: [Xen-users] Help me to set up network (routes)
I followed many tutorials to and pulled my hair out my head.
Remember in your guest config file along with
vif = [ip=foo, mac=foo, etc]
make shure to add.
netmask = foo
gateway = foo
AlannY wrote:
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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http://lists.xensource.com/xen-users
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