same ip address assigned to different guest OSs

[dsiefert-playboy]

Two virtual machines, both running Ubuntu 9.10. NAT DHCP server offers the same address, 10.0.2.15 to both of the machines rather than assigning 10.0.2.15 to first, and 10.0.2.16 to second, etc.

Log for first VM: 00:01:19.895 PCNet#0: Init: ss32=1 GCRDRA=0x2f8cc000[32] GCTDRA=0x2f8cb000[16] 00:01:19.903 NAT: IPv6 not supported 00:01:23.248 NAT: DHCP offered IP address 10.0.2.15 00:01:23.252 NAT: DHCP offered IP address 10.0.2.15

Log for second VM: 00:00:13.450 PCNet#0: Init: ss32=1 GCRDRA=0x1e2fa000[32] GCTDRA=0x1e2fb000[16] 00:00:13.457 NAT: IPv6 not supported 00:00:14.258 NAT: DHCP offered IP address 10.0.2.15 00:00:14.290 NAT: DHCP offered IP address 10.0.2.15

[dsiefert-playboy]

Sorry about the formatting.
Log for first VM:

00:01:19.895 PCNet#0: Init: ss32=1 GCRDRA=0x2f8cc000[32] GCTDRA=0x2f8cb000[16]
00:01:19.903 NAT: IPv6 not supported
00:01:23.248 NAT: DHCP offered IP address 10.0.2.15
00:01:23.252 NAT: DHCP offered IP address 10.0.2.15

Log for second VM:

00:00:13.450 PCNet#0: Init: ss32=1 GCRDRA=0x1e2fa000[32] GCTDRA=0x1e2fb000[16]
00:00:13.457 NAT: IPv6 not supported
00:00:14.258 NAT: DHCP offered IP address 10.0.2.15
00:00:14.290 NAT: DHCP offered IP address 10.0.2.15

[vasily Levchenko]

This behavior exactly the way it supposed to work. Each VM is after own instance of NAT giving IP and other network setting to the guest. Each VM is isolated from each other so there're no conflicts.