Adding extra INTERNAL ip's on my OpenVZ container

jeromeza

Hi guys,

I need to add several INTERNAL IP's for a virtual interface for some DNAT stuff I want to try.

How would I go about doing so?

Thanks,

jeromeza

I've tried to do the following to /etc/network/interfaces as an example, but no luck:

auto venet0:1
iface venet0:1 inet static
address 192.168.1.1
netmask 255.255.255.0

rmlhhd

auto vmbr0
iface vmbr0 inet static
        address  10.10.10.1
        netmask  255.255.255.0
        bridge_ports none
        bridge_stp off
        bridge_fd 0

        post-up echo 1 > /proc/sys/net/ipv4/ip_forward
        post-up   iptables -t nat -A POSTROUTING -s '10.10.10.0/24' -o eth0 -j MASQUERADE
        post-down iptables -t nat -D POSTROUTING -s '10.10.10.0/24' -o eth0 -j MASQUERADE

Then assign the VZ VPS with an IP like 10.10.10.25

jeromeza

@rmlhhd - Thanks so much.

Is that all stored in /etc/network/interfaces?

Thanks,

dabtech

Yes, that's all in /etc/network/interfaces.

And if you don't know this already, you can forward services to your VMs with internal IPs too:

iptables -t nat -A PREROUTING -i vmbr0 -p tcp -m tcp --dport 33389 -j DNAT --to-destination 10.10.10.10:3389

A connection to the host on external.IP:33389 will be forwarded to the VM at 10.10.10.10:3389.

jeromeza

Hmmm thanks