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Can we make virtual machines in RHEL6 with each having static ip's and have individual connection from other network and without using a bridge.

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What is the output of 'ip addr show' and 'brctl show'? – sciurus Mar 18 '11 at 14:12
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether e4:1f:13:6d:01:28 brd ff:ff:ff:ff:ff:ff inet6 fe80::e61f:13ff:fe6d:128/64 scope link valid_lft forever preferred_lft forever – nicepuli Mar 21 '11 at 12:54
3: eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000 link/ether e4:1f:13:6d:01:2a brd ff:ff:ff:ff:ff:ff inet 10.3.1.7/24 brd 10.3.1.255 scope global eth1 4: usb0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether e6:1f:13:5f:01:2b brd ff:ff:ff:ff:ff:ff 5: bridge0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether e4:1f:13:6d:01:28 brd ff:ff:ff:ff:ff:ff inet 192.168.1.220/22 brd 192.168.3.255 scope global bridge0 inet6 fe80::e61f:13ff:fe6d:128/64 scope link – nicepuli Mar 21 '11 at 12:54
valid_lft forever preferred_lft forever 6: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 500 link/ether fe:54:00:85:88:b2 brd ff:ff:ff:ff:ff:ff inet6 fe80::fc54:ff:fe85:88b2/64 scope link valid_lft forever preferred_lft forever – nicepuli Mar 21 '11 at 12:55
bridge name bridge id STP enabled interfaces bridge0 8000.e41f136d0128 yes eth0 vnet0 vnet1 – nicepuli Mar 21 '11 at 12:55
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2 Answers

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Either you need a seperate hardware NIC assigned to each virtual machine using pci passthrough, or you need to use bridged networking.

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up vote 0 down vote

there are two ways to go about networking - use a bridge or use NAT. The preferred way is to use a bridge, since this places the VM in the same network with the rest of the involved machines, the bridge acting like a virtual hub for the VMs. What exactly are you trying to achieve?

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Hi dyasny, i configured the host with ip 192.168.125.2 and the virtual machines with static ip's 192.168.125.3-15. The issues came when we moved the server to hosting center and there was lot of connection problems to the VM's. – nicepuli Mar 17 '11 at 15:54
Here is the ifconfig of Host: bridge0 Link encap:Ethernet HWaddr E4:1F:13:63:37:2C inet addr:192.168.125.2 Bcast:192.168.125.255 Mask:255.255.255.0 eth0 Link encap:Ethernet HWaddr E4:1F:13:63:37:2C lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 vnet0 Link encap:Ethernet HWaddr FE:54:00:E6:D4:FB inet6 addr: fe80::fc54:ff:fee6:d4fb/64 Scope:Link – nicepuli Mar 17 '11 at 15:55
Is the issue of network because i assigned the same network range to the VM's as well as the Host. Which is the best solution, change host ip or change VM ip's?How can i map the Changed IP to the Users Assigned IP. – nicepuli Mar 17 '11 at 16:01
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