setting up virtual box to SNAT/DNAT
Dave Cramer
davec-zxk95TxsVYDyHADnj0MGvQC/G2K4zDHf at public.gmane.org
Wed Jan 13 16:13:19 UTC 2010
I'm trying to setup asterisk inside a virtual box vm on a host with
only one interface. The host is running ubuntu 6.06, and virtualbox
2.2
I can get the host to talk out, but I can't DNAT ports
I've setup a bridge device
# VirtualBox NAT bridge
auto vnet0
iface vnet0 inet static
address 172.16.0.1
netmask 255.255.255.0
bridge_ports none
bridge_maxwait 0
bridge_fd 1
Here are the iptables rules
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 10022 -j
DNAT --to-destination 172.16.0.113:22
iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -i eth0 -o vnet0 -m state --state NEW -j ACCEPT
iptables -A FORWARD -o eth0 -i vnet0 -m state --state NEW -j ACCEPT
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
if I telnet into port 10022 the guest sees the incoming packet on port
22, but it doesn't go back properly.
Any help would be greatly appreciated.
Dave
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