[CentOS-virt] Virtual Box Host Networking problems

[Todd and Margo Chester]

Todd and Margo Chester wrote:
> Todd and Margo Chester wrote:
>> Dear Centos-Virt:
>>
>> This is actually a second request for help on the
>> same issue.  I finally got to try what several
>> months ago was replayed to me and no joy was to
>> be had.  I am afraid the original thread got stale
>> and also had extra, unnecessary data in it.
>>
>> Guest=XP Pro, SP2
>> Host=CentOS5; # uname -r; 2.6.18-8.1.15.el5
>>
>> VirtualBox-1.5.0_24069_rhel5-2.i586.rpm
>> http://www.virtualbox.org/download/1.5.0/VirtualBox-1.5.0_24069_rhel5-1.i586.rpm.run 
>>
>>
>> I have two nic: eth0 is the internal network; eth1 connects to a DSL 
>> modem.
>>
>> I also have a fully functioning DHCP server on eth0 (works perfectly
>> with Parallels for Linux).
>>
>> The directions (from hell):
>> http://www.virtualbox.org/download/UserManual.pdf
>>
>> I am trying to set up a "host interface" network between
>> my XP guest and my Linux host (eth0).
> 
> I do believe I FINALLY have it figured out.  I wrote myself
> the following how to.  Please feel free to clean it up and
> make it into an "Official CentOS 5 How To".
> 
> The only problem I have left is that the Guest XP can not
> browse the Host's Samba server by SMB name (IP works fine)
> 
> -T
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> T's CentOS 5 -- Virtual Box "Host Networking" bridge setup:
> 
> Note: a lot of this is taken from (with lots of refinements):
>       http://www.linuxweblog.com/virtualbox-host-networking
> 
> 
> iptables:  after creating br0 at etho's expense, you have to
>            change all references to "eth0" in your firewall
>            to "br0"
> 
> br0: will become the internal interface and have a "Fixed" (static)
>      IP address of 192.168.255.10
> 
> 
> Support software (required);
> 
>    "VBoxAddIF" from Virtual Basic
> 
>     bridge-utils:
>        yum install bridge-utils
> 
> ftp://ftp.pbone.net/mirror/ftp.centos.org/5.0/os/i386/CentOS/bridge-utils-1.1-2.i386.rpm 
> 
> 
> 
> ~~~~~~~~~~~~~~ /etc/rc.d/rc.local ~~~~~~~~~~~~~~~
> 
> # Set permissions on /dev/net/tun such that Virtual Box can use it
> /bin/chmod 0666 /dev/net/tun
> /bin/chmod 777 /dev/vboxdrv
> 
> # Restart the firewall
> /etc/{iamnottellingyou}
> 
> 
> ~~~ /etc/sysconfig/network-scripts/ifcfg-eth0 ~~~
> 
> DEVICE=eth0
> TYPE=Ethernet
> ONBOOT=yes
> USERCTL=yes
> IPV6INIT=no
> PEERDNS=no
> BRIDGE=br0
> ONBOOT=yes
> PROMISC=yes
> 
> 
> ~~~ /etc/sysconfig/network-scripts/ifcfg-br0 ~~~
> 
> DEVICE=br0
> TYPE=Bridge
> BOOTPROTO=static
> BROADCAST=192.168.255.255
> IPADDR=192.168.255.10
> NETMASK=255.255.255.0
> NETWORK=192.168.255.0
> GATEWAY=192.168.255.10
> ONBOOT=yes
> USERCTL=yes
> IPV6INIT=no
> PEERDNS=no
> PROMISC=yes
> 
> 
> ~~~ /etc/sysconfig/network-scripts/ifcfg-br0 ~~~
Ooops ^^^^^^^^^^^ should be  ifcfg-vbox0 ^^^


> 
> IPADDR=0.0.0.0
> PROMISC=yes
> 
> 
> ~~~~~~~~ Initial and permanent setup ~~~~~~~~~~~
> 
> #! /bin/bash
> 
> # load the tun module
> modprobe tunvi
> chmod 666 /dev/net/tun
> 
> # Create a new bridge and add the interfaces to the bridge.
> brctl addbr br0
> brctl addif br0 eth0
> /usr/bin/VBoxDeleteIF vbox0
> /usr/bin/VBoxAddIF vbox0 tony br0
> brctl addif br0 vbox0
> 
> # Bring up eth0 and vbox0 in promiscuous mode
> # Commended out as it should be handles in "network-scripts"
> #ifconfig eth0 promisc
> #ifconfig vbox0 0.0.0.0 promisc
> 
> brctl addif br0 vbox0
> 
> # Now reboot (restarting networking doesn't work)
> echo "Now reboot.  (I have no idea why)"
> 
> _______________________________________________
> CentOS-virt mailing list
> CentOS-virt at centos.org
> http://lists.centos.org/mailman/listinfo/centos-virt
>