VirtualBox Networking
I am trying to setup a lab to test Exchange Server. I am running Exchange Server on a VirtualBox virtual machine.
On the virtual machine, I have selected Bridged networking. I can get to the internet, can ping my host machine, router, etc.
My host machine is 192.168.1.10 and the virtual machine is 192.168.1.51.
I setup port forwarding on my router/firewall to forward port 25 to the virtual machine's ip. I also have public dns pointed to the external ip of my router/firewall.
I tried a telnet <my domain name> 25 and it failed. I also tried telnetting from my host machine on the same subnet. That failes to. If I run the telnet command on the Exchange server itself, it responds, so it is listening on port 25.
Since I can't telnet from the host machine, I think it must be something to do with the way I have networking setup on the virtual machine.
By the way, Windows Firewall is disabled on all machines.
On the virtual machine, I have selected Bridged networking. I can get to the internet, can ping my host machine, router, etc.
My host machine is 192.168.1.10 and the virtual machine is 192.168.1.51.
I setup port forwarding on my router/firewall to forward port 25 to the virtual machine's ip. I also have public dns pointed to the external ip of my router/firewall.
I tried a telnet <my domain name> 25 and it failed. I also tried telnetting from my host machine on the same subnet. That failes to. If I run the telnet command on the Exchange server itself, it responds, so it is listening on port 25.
Since I can't telnet from the host machine, I think it must be something to do with the way I have networking setup on the virtual machine.
By the way, Windows Firewall is disabled on all machines.
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
are you sure this is Bridged and not NAT?
when you tried telnet on the Exchange server, did you try telnet 127.0.0.1 25 and it's ip address telnet 192.168.1.51 25?
both work?
both work?
hang on, are we using hostnames or ip addresses here?
try IP addresses with telnet?
try IP addresses with telnet?
ASKER
It is bridged.
From the Exchange Server I did a telnet to 127.0.0.1 but not 192.168.1.51.
From a remote pc I tried it by my registered DNS name that points to the public ip of my firewall. The firewall has port forwarding for port 25 that directs it to 192.168.1.51.
From the Exchange Server I did a telnet to 127.0.0.1 but not 192.168.1.51.
From a remote pc I tried it by my registered DNS name that points to the public ip of my firewall. The firewall has port forwarding for port 25 that directs it to 192.168.1.51.
if you telnet 192.168.1.51 25 do get a connection?
ASKER
Tried telnetting from the Exchange server using telnet 192.168.1.51 25 and it was successful, too.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
This is kinda strange. I shutdown the virtual machine, changed it to NAT, rebooted, shutdown, and changed it back to Bridged and now it's working in all scenarios.
sounds like it was in NAT, bit of a bug.
glad its all working, you running virtualbox 4.0.6?
ASKER
Yep. 4.0.6