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Re: [Xen-users] 2 network cards and two physical network.

Dirk H. Schulz a écrit :


Hi Jean,

Jean-Michel Caricand schrieb:


Hi all,

I have 2 network cards on my computer. I want to use :
- eth0 for xen0 host: ip 192.168.1.4
- eth1 for xenU guest: ip 192.168.2.1

guest and host are not on the same network. eth0 is configured when
I start xend (xen-br0->eth0).
I configure eth1 with :
/etc/xen/scripts/network start bridge=xen-br1 netdev=eth1
In my guest domain config, I add vif = [ 'bridge=xen-br1'], but when I start 
my domain, I can't ping machines on network 192.168.2.0/24. ifconfig
on guest show a correct config.



What is your correct config? Please provide it.

And did you verify with brctl show that eth1 is on xen-br1 and working?

What is the contents of the routing table on dom0?
Since the above config should work, any additional info would help tracking down the problem. 

Dirk

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For examples, I test the config at home.

Before "xend start"

amande:/home/jm# ifconfig
eth0      Lien encap:Ethernet  HWaddr 00:D0:70:02:0C:B3
         inet adr:192.168.3.1  Bcast:192.168.3.255  Masque:255.255.255.0
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:1289 errors:0 dropped:0 overruns:0 frame:0
         TX packets:1527 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:1000
         RX bytes:425133 (415.1 KiB)  TX bytes:368301 (359.6 KiB)
         Interruption:10 Adresse de base:0xe000

lo        Lien encap:Boucle locale
         inet adr:127.0.0.1  Masque:255.0.0.0
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:204 errors:0 dropped:0 overruns:0 frame:0
         TX packets:204 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:0
         RX bytes:23402 (22.8 KiB)  TX bytes:23402 (22.8 KiB)

amande:/home/jm#  route -n
Table de routage IP du noyau
Destination Passerelle Genmask Indic Metric Ref Use Iface 
192.168.3.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
0.0.0.0         192.168.3.254   0.0.0.0         UG    0      0        0 eth0
amande:/home/jm#

After:
amande:/home/jm# ifconfig
eth0      Lien encap:Ethernet  HWaddr 00:D0:70:02:0C:B3
         inet adr:192.168.3.1  Bcast:192.168.3.255  Masque:255.255.255.0
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:1289 errors:0 dropped:0 overruns:0 frame:0
         TX packets:1527 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:1000
         RX bytes:425133 (415.1 KiB)  TX bytes:368301 (359.6 KiB)
         Interruption:10 Adresse de base:0xe000

lo        Lien encap:Boucle locale
         inet adr:127.0.0.1  Masque:255.0.0.0
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:204 errors:0 dropped:0 overruns:0 frame:0
         TX packets:204 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:0
         RX bytes:23402 (22.8 KiB)  TX bytes:23402 (22.8 KiB)

xen-br0   Lien encap:Ethernet  HWaddr 00:D0:70:02:0C:B3
         inet adr:192.168.3.1  Bcast:192.168.3.255  Masque:255.255.255.255
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:1079 errors:0 dropped:0 overruns:0 frame:0
         TX packets:1249 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:0
         RX bytes:303127 (296.0 KiB)  TX bytes:344472 (336.3 KiB)

amande:/home/jm#  route -n
Table de routage IP du noyau
Destination Passerelle Genmask Indic Metric Ref Use Iface 192.168.3.0 0.0.0.0 255.255.255.0 U 0 0 0 xen-br0 0.0.0.0 192.168.3.254 0.0.0.0 UG 0 0 0 xen-br0 
amande:/home/jm#

amande:/home/jm# /etc/xen/scripts/network start bridge=xen-br1 netdev=eth1
network start bridge=xen-br1 netdev=eth1 antispoof=yes
iptables: No chain/target/match by that name
amande:/home/jm#  cat /etc/xen/xmaurige
...
# Optionally define mac and/or bridge for the network interfaces.
# Random MACs are assigned if not given.
vif = [ 'bridge=xen-br1' ]
...

amande:/home/jm# ifconfig
eth0      Lien encap:Ethernet  HWaddr 00:D0:70:02:0C:B3
         inet adr:192.168.3.1  Bcast:192.168.3.255  Masque:255.255.255.0
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:1374 errors:0 dropped:0 overruns:0 frame:0
         TX packets:1595 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:1000
         RX bytes:443680 (433.2 KiB)  TX bytes:378263 (369.3 KiB)
         Interruption:10 Adresse de base:0xe000

lo        Lien encap:Boucle locale
         inet adr:127.0.0.1  Masque:255.0.0.0
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:204 errors:0 dropped:0 overruns:0 frame:0
         TX packets:204 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:0
         RX bytes:23402 (22.8 KiB)  TX bytes:23402 (22.8 KiB)

xen-br0   Lien encap:Ethernet  HWaddr 00:D0:70:02:0C:B3
         inet adr:192.168.3.1  Bcast:192.168.3.255  Masque:255.255.255.255
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:1164 errors:0 dropped:0 overruns:0 frame:0
         TX packets:1315 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:0
         RX bytes:320412 (312.9 KiB)  TX bytes:353884 (345.5 KiB)

xen-br1   Lien encap:Ethernet  HWaddr 00:E0:7D:8F:0A:AC
         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:0 overruns:0 carrier:0
         collisions:0 lg file transmission:0
         RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

amande:/home/jm# route -n
Table de routage IP du noyau
Destination Passerelle Genmask Indic Metric Ref Use Iface 192.168.3.0 0.0.0.0 255.255.255.0 U 0 0 0 xen-br0 0.0.0.0 192.168.3.254 0.0.0.0 UG 0 0 0 xen-br0 amande:/home/jm# 


===================================================
I start aurige computer

aurige:~# ifconfig
eth0      Link encap:Ethernet  HWaddr AA:00:00:16:2A:0D
         inet addr:192.168.4.18  Bcast:192.168.4.255  Mask:255.255.255.0
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:98 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 b)  TX bytes:8567 (8.3 KiB)

lo        Link encap:Local Loopback
         inet addr:127.0.0.1  Mask:255.0.0.0
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:140 errors:0 dropped:0 overruns:0 frame:0
         TX packets:140 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:8777 (8.5 KiB)  TX bytes:8777 (8.5 KiB)

aurige:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface 
192.168.4.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
0.0.0.0         192.168.4.254   0.0.0.0         UG    0      0        0 eth0

aurige:~# ping 192.168.4.5
PING 192.168.4.5 (192.168.4.5) 56(84) bytes of data.
From 192.168.4.18 icmp_seq=1 Destination Host Unreachable
From 192.168.4.18 icmp_seq=2 Destination Host Unreachable
From 192.168.4.18 icmp_seq=3 Destination Host Unreachable

====================================================





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