cannot ping from CentOS guest to Vista host

[shaymol]

Hi there
i have Vista as host and CentOS as guest OS
i can ping guest os from host os but cannot ping host os from guest os

my host ip is 192.168.1.2
and guest ip is 192.168.1.1

if i ping 192.168.1.1 from host that is windows cmd it works
but if i try ping 192.168.1.2 from virtualbox (CentOS) it wont work

i disabled my vista firewall but still it cannot works, i dont have any other virus guard installed in vista.

Is this any firewall problem or what ?

Please help me out to solve this problem

Thanks in advance

Shaymol

[Perryg]

What is the network mode for the guest? Bridged, NAT, Host-only?
What does ipconfig /all from vista command window, and ifconfig in Cent terminal show?

[shaymol]

Hi
i have two network options as follows

Adapter 1 : PCnet-FAST III (NAT)
Adapter 2: PCnet-FAST III (Host-only adapter, 'VirtualBox Host-Only Ethernet Adapter')

i have attached my vista ipconfig/ all and centos ifconfig result

Please help me out to solve this problem

Thanks in advance

Shaymol

[Perryg]

Look in the CentOS and make sure that you have disabled the firewall there also.

[Sasquatch]

Also check the output of the arp command. On Windows, you need to enter arp -a, on CentOS, a simple arp is enough. That should give you the IP addresses and MAC addresses of the systems you already tried to access (in whatever way, ping triggers it too). Is there any reason btw why you have 192.168.1.1 for the Guest, and not just 192.168.1.10 or something like that? Even though your ipconfig /all doesn't mention any network adapters with connection, there might be some IP conflict that Windows doesn't report, and Linux doesn't show that either by default (a separate package is needed for that detection).

Have you also tried to ping the IPv6 address (fe80:..... etc)? You ping such addresses from Windows with ping fe80:..., Linux uses ping6 fe80:.... You might need to specify which NIC to use for the ping.

[shaymol]

Look in the CentOS and make sure that you have disabled the firewall there also.

i installed text mode of CentOS as guest OS, also the same vdi file i used in my desktop pc with windows XP host and it works there , i mean both ping works ok , form host to geust and guest to host. but in my laptop under vista host it doesnt work

[Sasquatch]

Do you happen to have some additional security software installed, like some internet security software?

[shaymol]

Do you happen to have some additional security software installed, like some internet security software?

No i dont have any third party security software installed in my vista yet

[Perryg]

Change the ip address of the guest to something else beside (.1) and turn off the firewall in the vista host.
Those are the only things that I can think of at the moment to help you.