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I have a Debian Server with 4 public static addresses. There is a KVM guest (also Debian) installed and running. What I want is to give the guest an IP of the host, so that both machines have public IPs.

IP 1: 188.165.A.B
IP 2: 178.33.CCC.D
IP 3: 178.33.CCC.E
IP 4: 178.33.CCC.F

What should I do to have connection for host and guest ?

This is network conf:

# ifconfig   

br0       Link encap:Ethernet  HWaddr e8:40:f2:0a:cc:28  
          inet addr:188.165.A.B  Bcast:188.165.255.255  Mask:255.255.255.0
          inet6 addr: fe80::ea40:f2ff:fe0a:cc28/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3618 errors:0 dropped:4 overruns:0 frame:0
          TX packets:4853 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:599562 (585.5 KiB)  TX bytes:1693443 (1.6 MiB)

eth0      Link encap:Ethernet  HWaddr e8:40:f2:0a:cc:28  
          inet6 addr: fe80::ea40:f2ff:fe0a:cc28/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4274 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4879 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:720045 (703.1 KiB)  TX bytes:1715641 (1.6 MiB)
          Interrupt:20 Memory:fe500000-fe520000 

eth0:0    Link encap:Ethernet  HWaddr e8:40:f2:0a:cc:28  
          inet addr:178.33.CCC.D  Bcast:178.33.255.255  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:20 Memory:fe500000-fe520000 

eth0:1    Link encap:Ethernet  HWaddr e8:40:f2:0a:cc:28  
          inet addr:178.33.CCC.E  Bcast:178.33.255.255  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:20 Memory:fe500000-fe520000 

eth0:2    Link encap:Ethernet  HWaddr e8:40:f2:0a:cc:28  
          inet addr:178.33.CCC.F  Bcast:178.33.255.255  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:20 Memory:fe500000-fe520000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:27932 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27932 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1820862 (1.7 MiB)  TX bytes:1820862 (1.7 MiB)

vnet0     Link encap:Ethernet  HWaddr fe:54:00:87:40:ec  
          inet6 addr: fe80::fc54:ff:fe87:40ec/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:18 errors:0 dropped:0 overruns:0 frame:0
          TX packets:204 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:1452 (1.4 KiB)  TX bytes:16958 (16.5 KiB)

#route

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         aa.bb.cc.eu 0.0.0.0         UG    0      0        0 br0
188.165.255.0   *               255.255.255.0   U     0      0        0 br0

# brctl show

bridge name bridge id       STP enabled     interfaces
br0     8000.e840f20acc28   no             eth0
                                        vnet0

There is no firewall enabled and DNS is configured properly.

What I want to achieve:

     |                         | |           
+----+-------------------------+-+------+
|    |          Host           | |      |   
|    |                         | |      |   
|    |            +------------+------+ |
|  eth0           |          eth0:0-1 | | 
|  188.165.A.B    |                   | |          
|                 |                   | |          
|                 |  br0     vnet0    | | 
|                 +------------+------+ |
|                              |        |   
|                              |        |   
|                 +------------+------+ |
|                 |            |      | |   
|                 |     eth0:2-+      | |
|                 |     178.33.CCC.F  | |
|                 |                   | |          
|                 |       Guest       | |
|                 +-------------------+ |
+---------------------------------------+

Thanks you

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closed as off topic by Sathya Jun 27 '12 at 6:58

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please don't cross post KVM network bridge and public static IP for both host and guests –  Sathya Jun 27 '12 at 6:58