Problem is, I can't talk with 172 subnetwork on the physical host machine, nevermind OpenVZ containers.
I can communicate with hosts through eth0 (ie: ping -I eth0 192.168.1.any_host is successful), but not communicate with hosts in subnet 172 on through eth1.
I don't want to route packets between these two subnets. All traffic should go to 192 (external through 192 default gateway) except when the destination is a 172 network.
eth0 Link encap:Ethernet HWaddr 00:22:a7:2b:fc:f0
inet addr:192.168.1.50 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::217:a4ff:fe3b:fcf0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:33873975 errors:0 dropped:0 overruns:0 frame:0
TX packets:26973121 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3267024423 (21.1 GiB) TX bytes:3234716554 (19.5 GiB)
Interrupt:25
eth1 Link encap:Ethernet HWaddr 00:22:a7:1b:fa:e0
inet addr:172.168.1.40 Bcast:172.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::217:a4ff:fe3b:fcef/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:492 (492.0 B)
Interrupt:26
venet0 etc...
I added static route:
ip route add 172.168.1.0/24 dev eth1 proto kernel scope link src 172.168.1.40
Here is relevant part of routing table:
172.168.1.0 * 255.255.255.0 U 0 0 0 eth1
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
default host.example.ca 0.0.0.0 UG 0 0 0 eth0
172.168.1.0/24 dev eth1 proto kernel scope link src 172.168.1.40
192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.50
default via 192.168.1.50 dev eth0
I can't ping any host connected to the 172 subnet.
Here is my /etc/network/interfaces:
#loopback
auto lo eth0 eth1
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
allow-hotplug eth1
iface eth0 inet static
address 192.168.1.50
netmask 255.255.255.0
network 192.168.1.0
gateway 192.168.1.1
broadcast 192.168.1.255
iface eth1 inet static
address 172.168.1.40
netmask 255.255.255.0
network 172.168.1.0
broadcast 172.168.1.255
#no gateway for eth1 specified as I want all external traffic forwarded through eth0
restarted interface:
ifdown eth1
ifconfig eth1 172.168.1.40 netmask 255.255.255.0 up
The physical connection to the switch is fine. Before I can get to the containers I need to fix this problem.
I can ping the both local interfaces.
Any help please???
[Updated on: Fri, 30 April 2010 15:16]
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