Connecting 2 virtual machines to a single network

[NeddySeagoon]

Taigo,

There is no point in setting a default route for the 10.10.10.0/24 network. It may beak other things.

Set it up as I said then share the output of

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ifconfig

and

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route

from both VMs.
Also explain how you created the bridge and connected the VMs to it.

The default route belongs to the default set up on the other interfaces for now.

[Taigo]

i set the up hopefully correct.
ifconfig: http://0x0.st/onsT.txt

route:

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Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.1.1     0.0.0.0         UG    1002   0        0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U     1002   0        0 eth0
192.168.112.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr1
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0

[NeddySeagoon]

Taigo,

This is the automatic virt-manager set up on the host.

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virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:39:aa:f0  txqueuelen 1000  (Ethernet)
        RX packets 267  bytes 47532 (46.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 120  bytes 70659 (69.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Guests will use 192.168.122.1 as their default route.

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br0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether c6:0c:7d:b9:6f:c7  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

is the bridge I asked you to create.
Notice that it dos not have an IP address. That's correct.

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virbr1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.112.1  netmask 255.255.255.0  broadcast 192.168.112.255
        ether 52:54:00:97:2b:7f  txqueuelen 1000  (Ethernet)
        RX packets 8464  bytes 1471971 (1.4 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8213  bytes 135188562 (128.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

is in a name range that belongs to virt-manager.
It has an IP address of 192.168.112.1 on the host. What is that for.

The routing table looks correct.

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Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.1.1     0.0.0.0         UG    1002   0        0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U     1002   0        0 eth0
192.168.112.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr1
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0

Rules are applied from the bottom up. The kernel loots at the IP address in the packet, if it matches 192.168.122.0/24, its sent to virbr0. No other rools are tested.
When that fails, the packet is tested against 192.168.112.0/24, if it matches, the packet is sent to virbr1.
Anything eventually left over gets to the default, which matches everything, so packets the kernel cannot route are sent to 192.168.1.1 on eth0.

That's OK, now what of the two VMs?
When you set up the extra NICs in the VMs, connect them to br0.

What does

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route

and

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ifconfig

show for the two VMs?

[Taigo]

I am sorry for replying so late, i was a bit busy lately.

When you set up the extra NICs in the VMs, connect them to br0.

What does

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route

and

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ifconfig

show for the two VMs?

What do you mean with this? At the previous reply i also send route and ifconfig and both vm's where also connected to br0.

[NeddySeagoon]

Taigo,

You have three systems now.

1. The host
2. VM 1
3. VM 2

You posted the route and ifconfig from the host.
We need to see it from the two VMs too.

On windows, if you have windows installs in the two VMs, open the command prompt.
route works
ifconfig is ipconfig, as Microsoft used the BSD network code.