Bridged networking only working in one direction
Posted: 13. Aug 2008, 15:38
I have setup bridged networking, following the first "framed instructions" from Advanced Network settings for Linux, using the IP-addresses and interface names given in that example.
In the guest I set the IP-address of the ethernet interface to 10.1.1.2, and the default gateway to 10.1.1.1. The network adapter of the guest is attached to the host interface with the name tap1.
The guest can ping the host (ping 10.1.1.1), but the host does not get a reply when pinging the guest (ping 10.1.1.2). Temporarily disabling the Guarddog firewall on the host does not solve the problem.
What can be causing the problem?
Host is Ubuntu 8.04, kernel 2.6.24-19-generic, guest is Windows XP Pro SP2.
(When I get this problem solved the next challenge is adding VMware server's vmnet1 to br0, so the VirtualBox guest is in the same network as the VMware guests and the host, without connection to the physical LAN.)
In the guest I set the IP-address of the ethernet interface to 10.1.1.2, and the default gateway to 10.1.1.1. The network adapter of the guest is attached to the host interface with the name tap1.
The guest can ping the host (ping 10.1.1.1), but the host does not get a reply when pinging the guest (ping 10.1.1.2). Temporarily disabling the Guarddog firewall on the host does not solve the problem.
What can be causing the problem?
Host is Ubuntu 8.04, kernel 2.6.24-19-generic, guest is Windows XP Pro SP2.
(When I get this problem solved the next challenge is adding VMware server's vmnet1 to br0, so the VirtualBox guest is in the same network as the VMware guests and the host, without connection to the physical LAN.)